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authorJörg Frings-Fürst <debian@jff-webhosting.net>2018-07-09 14:11:07 +0200
committerJörg Frings-Fürst <debian@jff-webhosting.net>2018-07-09 14:11:07 +0200
commit9033aee6c281674e5d3d64e2f07bd8f7e7bbe694 (patch)
treea8748b55127d6be88e4b71b1dddf5985daac6a94 /lib/spdlog
parentb84c8622d092fd773888eed89f1dbffb2c3a57f7 (diff)
parentcb4fdfae7c68f6f4eef5893769f4b885bcb48186 (diff)
Merge branch 'feature/upstream' into develop
Diffstat (limited to 'lib/spdlog')
-rw-r--r--lib/spdlog/async_logger.h72
-rw-r--r--lib/spdlog/common.h188
-rw-r--r--lib/spdlog/contrib/README.md1
-rw-r--r--lib/spdlog/contrib/sinks/.gitignore1
-rw-r--r--lib/spdlog/contrib/sinks/step_file_sink.h216
-rw-r--r--lib/spdlog/details/async_log_helper.h333
-rw-r--r--lib/spdlog/details/async_logger_impl.h95
-rw-r--r--lib/spdlog/details/file_helper.h151
-rw-r--r--lib/spdlog/details/log_msg.h48
-rw-r--r--lib/spdlog/details/logger_impl.h348
-rw-r--r--lib/spdlog/details/mpmc_blocking_q.h84
-rw-r--r--lib/spdlog/details/null_mutex.h45
-rw-r--r--lib/spdlog/details/os.h431
-rw-r--r--lib/spdlog/details/pattern_formatter_impl.h707
-rw-r--r--lib/spdlog/details/registry.h263
-rw-r--r--lib/spdlog/details/spdlog_impl.h278
-rw-r--r--lib/spdlog/fmt/bundled/LICENSE.rst23
-rw-r--r--lib/spdlog/fmt/bundled/format.cc495
-rw-r--r--lib/spdlog/fmt/bundled/format.h4920
-rw-r--r--lib/spdlog/fmt/bundled/ostream.cc35
-rw-r--r--lib/spdlog/fmt/bundled/ostream.h117
-rw-r--r--lib/spdlog/fmt/bundled/posix.cc241
-rw-r--r--lib/spdlog/fmt/bundled/posix.h423
-rw-r--r--lib/spdlog/fmt/bundled/printf.cc32
-rw-r--r--lib/spdlog/fmt/bundled/printf.h723
-rw-r--r--lib/spdlog/fmt/bundled/time.h188
-rw-r--r--lib/spdlog/fmt/fmt.h33
-rw-r--r--lib/spdlog/fmt/ostr.h18
-rw-r--r--lib/spdlog/formatter.h46
-rw-r--r--lib/spdlog/logger.h152
-rw-r--r--lib/spdlog/sinks/android_sink.h91
-rw-r--r--lib/spdlog/sinks/ansicolor_sink.h150
-rw-r--r--lib/spdlog/sinks/base_sink.h49
-rw-r--r--lib/spdlog/sinks/dist_sink.h77
-rw-r--r--lib/spdlog/sinks/file_sinks.h255
-rw-r--r--lib/spdlog/sinks/msvc_sink.h44
-rw-r--r--lib/spdlog/sinks/null_sink.h29
-rw-r--r--lib/spdlog/sinks/ostream_sink.h49
-rw-r--r--lib/spdlog/sinks/sink.h44
-rw-r--r--lib/spdlog/sinks/stdout_sinks.h79
-rw-r--r--lib/spdlog/sinks/syslog_sink.h76
-rw-r--r--lib/spdlog/sinks/wincolor_sink.h144
-rw-r--r--lib/spdlog/sinks/windebug_sink.h27
-rw-r--r--lib/spdlog/spdlog.h204
-rw-r--r--lib/spdlog/tweakme.h143
45 files changed, 12168 insertions, 0 deletions
diff --git a/lib/spdlog/async_logger.h b/lib/spdlog/async_logger.h
new file mode 100644
index 0000000..75641d2
--- /dev/null
+++ b/lib/spdlog/async_logger.h
@@ -0,0 +1,72 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+// Very fast asynchronous logger (millions of logs per second on an average desktop)
+// Uses pre allocated lockfree queue for maximum throughput even under large number of threads.
+// Creates a single back thread to pop messages from the queue and log them.
+//
+// Upon each log write the logger:
+// 1. Checks if its log level is enough to log the message
+// 2. Push a new copy of the message to a queue (or block the caller until space is available in the queue)
+// 3. will throw spdlog_ex upon log exceptions
+// Upon destruction, logs all remaining messages in the queue before destructing..
+
+#include "common.h"
+#include "logger.h"
+
+#include <chrono>
+#include <functional>
+#include <memory>
+#include <string>
+
+namespace spdlog {
+
+namespace details {
+class async_log_helper;
+}
+
+class async_logger SPDLOG_FINAL : public logger
+{
+public:
+ template<class It>
+ async_logger(const std::string &logger_name, const It &begin, const It &end, size_t queue_size,
+ const async_overflow_policy overflow_policy = async_overflow_policy::block_retry,
+ const std::function<void()> &worker_warmup_cb = nullptr,
+ const std::chrono::milliseconds &flush_interval_ms = std::chrono::milliseconds::zero(),
+ const std::function<void()> &worker_teardown_cb = nullptr);
+
+ async_logger(const std::string &logger_name, sinks_init_list sinks, size_t queue_size,
+ const async_overflow_policy overflow_policy = async_overflow_policy::block_retry,
+ const std::function<void()> &worker_warmup_cb = nullptr,
+ const std::chrono::milliseconds &flush_interval_ms = std::chrono::milliseconds::zero(),
+ const std::function<void()> &worker_teardown_cb = nullptr);
+
+ async_logger(const std::string &logger_name, sink_ptr single_sink, size_t queue_size,
+ const async_overflow_policy overflow_policy = async_overflow_policy::block_retry,
+ const std::function<void()> &worker_warmup_cb = nullptr,
+ const std::chrono::milliseconds &flush_interval_ms = std::chrono::milliseconds::zero(),
+ const std::function<void()> &worker_teardown_cb = nullptr);
+
+ // Wait for the queue to be empty, and flush synchronously
+ // Warning: this can potentially last forever as we wait it to complete
+ void flush() override;
+
+ // Error handler
+ void set_error_handler(log_err_handler) override;
+ log_err_handler error_handler() override;
+
+protected:
+ void _sink_it(details::log_msg &msg) override;
+ void _set_formatter(spdlog::formatter_ptr msg_formatter) override;
+ void _set_pattern(const std::string &pattern, pattern_time_type pattern_time) override;
+
+private:
+ std::unique_ptr<details::async_log_helper> _async_log_helper;
+};
+} // namespace spdlog
+
+#include "details/async_logger_impl.h"
diff --git a/lib/spdlog/common.h b/lib/spdlog/common.h
new file mode 100644
index 0000000..e02cb0b
--- /dev/null
+++ b/lib/spdlog/common.h
@@ -0,0 +1,188 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+#define SPDLOG_VERSION "0.17.0"
+
+#include "tweakme.h"
+
+#include <atomic>
+#include <chrono>
+#include <exception>
+#include <functional>
+#include <initializer_list>
+#include <memory>
+#include <string>
+#include <unordered_map>
+
+#if defined(_WIN32) && defined(SPDLOG_WCHAR_FILENAMES)
+#include <codecvt>
+#include <locale>
+#endif
+
+#include "details/null_mutex.h"
+
+// visual studio upto 2013 does not support noexcept nor constexpr
+#if defined(_MSC_VER) && (_MSC_VER < 1900)
+#define SPDLOG_NOEXCEPT throw()
+#define SPDLOG_CONSTEXPR
+#else
+#define SPDLOG_NOEXCEPT noexcept
+#define SPDLOG_CONSTEXPR constexpr
+#endif
+
+// final keyword support. On by default. See tweakme.h
+#if defined(SPDLOG_NO_FINAL)
+#define SPDLOG_FINAL
+#else
+#define SPDLOG_FINAL final
+#endif
+
+#if defined(__GNUC__) || defined(__clang__)
+#define SPDLOG_DEPRECATED __attribute__((deprecated))
+#elif defined(_MSC_VER)
+#define SPDLOG_DEPRECATED __declspec(deprecated)
+#else
+#define SPDLOG_DEPRECATED
+#endif
+
+#include "fmt/fmt.h"
+
+namespace spdlog {
+
+class formatter;
+
+namespace sinks {
+class sink;
+}
+
+using log_clock = std::chrono::system_clock;
+using sink_ptr = std::shared_ptr<sinks::sink>;
+using sinks_init_list = std::initializer_list<sink_ptr>;
+using formatter_ptr = std::shared_ptr<spdlog::formatter>;
+#if defined(SPDLOG_NO_ATOMIC_LEVELS)
+using level_t = details::null_atomic_int;
+#else
+using level_t = std::atomic<int>;
+#endif
+
+using log_err_handler = std::function<void(const std::string &err_msg)>;
+
+// Log level enum
+namespace level {
+enum level_enum
+{
+ trace = 0,
+ debug = 1,
+ info = 2,
+ warn = 3,
+ err = 4,
+ critical = 5,
+ off = 6
+};
+
+#if !defined(SPDLOG_LEVEL_NAMES)
+#define SPDLOG_LEVEL_NAMES \
+ { \
+ "trace", "debug", "info", "warning", "error", "critical", "off" \
+ }
+#endif
+static const char *level_names[] SPDLOG_LEVEL_NAMES;
+
+static const char *short_level_names[]{"T", "D", "I", "W", "E", "C", "O"};
+
+inline const char *to_str(spdlog::level::level_enum l)
+{
+ return level_names[l];
+}
+
+inline const char *to_short_str(spdlog::level::level_enum l)
+{
+ return short_level_names[l];
+}
+inline spdlog::level::level_enum from_str(const std::string &name)
+{
+ static std::unordered_map<std::string, level_enum> name_to_level = // map string->level
+ {{level_names[0], level::trace}, // trace
+ {level_names[1], level::debug}, // debug
+ {level_names[2], level::info}, // info
+ {level_names[3], level::warn}, // warn
+ {level_names[4], level::err}, // err
+ {level_names[5], level::critical}, // critical
+ {level_names[6], level::off}}; // off
+
+ auto lvl_it = name_to_level.find(name);
+ return lvl_it != name_to_level.end() ? lvl_it->second : level::off;
+}
+
+using level_hasher = std::hash<int>;
+} // namespace level
+
+//
+// Async overflow policy - block by default.
+//
+enum class async_overflow_policy
+{
+ block_retry, // Block / yield / sleep until message can be enqueued
+ discard_log_msg // Discard the message it enqueue fails
+};
+
+//
+// Pattern time - specific time getting to use for pattern_formatter.
+// local time by default
+//
+enum class pattern_time_type
+{
+ local, // log localtime
+ utc // log utc
+};
+
+//
+// Log exception
+//
+class spdlog_ex : public std::exception
+{
+public:
+ explicit spdlog_ex(std::string msg)
+ : _msg(std::move(msg))
+ {
+ }
+
+ spdlog_ex(const std::string &msg, int last_errno)
+ {
+ fmt::MemoryWriter writer;
+ fmt::format_system_error(writer, last_errno, msg);
+ _msg = writer.str();
+ }
+
+ const char *what() const SPDLOG_NOEXCEPT override
+ {
+ return _msg.c_str();
+ }
+
+private:
+ std::string _msg;
+};
+
+//
+// wchar support for windows file names (SPDLOG_WCHAR_FILENAMES must be defined)
+//
+#if defined(_WIN32) && defined(SPDLOG_WCHAR_FILENAMES)
+using filename_t = std::wstring;
+#else
+using filename_t = std::string;
+#endif
+
+#define SPDLOG_CATCH_AND_HANDLE \
+ catch (const std::exception &ex) \
+ { \
+ _err_handler(ex.what()); \
+ } \
+ catch (...) \
+ { \
+ _err_handler("Unknown exeption in logger"); \
+ }
+} // namespace spdlog
diff --git a/lib/spdlog/contrib/README.md b/lib/spdlog/contrib/README.md
new file mode 100644
index 0000000..e3abc34
--- /dev/null
+++ b/lib/spdlog/contrib/README.md
@@ -0,0 +1 @@
+Please put here your contribs. Popular contribs will be moved to main tree after stablization
diff --git a/lib/spdlog/contrib/sinks/.gitignore b/lib/spdlog/contrib/sinks/.gitignore
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/lib/spdlog/contrib/sinks/.gitignore
@@ -0,0 +1 @@
+
diff --git a/lib/spdlog/contrib/sinks/step_file_sink.h b/lib/spdlog/contrib/sinks/step_file_sink.h
new file mode 100644
index 0000000..85e24e9
--- /dev/null
+++ b/lib/spdlog/contrib/sinks/step_file_sink.h
@@ -0,0 +1,216 @@
+#pragma once
+
+#include "../../details/file_helper.h"
+#include "../../details/null_mutex.h"
+#include "../../fmt/fmt.h"
+#include "../../sinks/base_sink.h"
+
+#include <algorithm>
+#include <cerrno>
+#include <chrono>
+#include <cstdio>
+#include <ctime>
+#include <mutex>
+#include <string>
+
+// Example for spdlog.h
+//
+// Create a file logger which creates new files with a specified time step and fixed file size:
+//
+// std::shared_ptr<logger> step_logger_mt(const std::string &logger_name, const filename_t &filename, unsigned seconds = 60, const
+// filename_t &tmp_ext = ".tmp", unsigned max_file_size = std::numeric_limits<unsigned>::max(), bool delete_empty_files = true, const
+// filename_t &file_header = ""); std::shared_ptr<logger> step_logger_st(const std::string &logger_name, const filename_t &filename,
+// unsigned seconds = 60, const filename_t &tmp_ext = ".tmp", unsigned max_file_size = std::numeric_limits<unsigned>::max());
+
+// Example for spdlog_impl.h
+// Create a file logger that creates new files with a specified increment
+// inline std::shared_ptr<spdlog::logger> spdlog::step_logger_mt(
+// const std::string &logger_name, const filename_t &filename_fmt, unsigned seconds, const filename_t &tmp_ext, unsigned max_file_size,
+// bool delete_empty_files, const filename_t &file_header)
+// {
+// return create<spdlog::sinks::step_file_sink_mt>(logger_name, filename_fmt, seconds, tmp_ext, max_file_size, delete_empty_files,
+// file_header);
+// }
+
+// inline std::shared_ptr<spdlog::logger> spdlog::step_logger_st(
+// const std::string &logger_name, const filename_t &filename_fmt, unsigned seconds, const filename_t &tmp_ext, unsigned max_file_size,
+// bool delete_empty_files, const filename_t &file_header)
+// {
+// return create<spdlog::sinks::step_file_sink_st>(logger_name, filename_fmt, seconds, tmp_ext, max_file_size, delete_empty_files,
+// file_header);
+// }
+
+namespace spdlog {
+namespace sinks {
+
+/*
+ * Default generator of step log file names.
+ */
+struct default_step_file_name_calculator
+{
+ // Create filename for the form filename_YYYY-MM-DD_hh-mm-ss.ext
+ static std::tuple<filename_t, filename_t> calc_filename(const filename_t &filename, const filename_t &tmp_ext)
+ {
+ std::tm tm = spdlog::details::os::localtime();
+ filename_t basename, ext;
+ std::tie(basename, ext) = details::file_helper::split_by_extenstion(filename);
+ std::conditional<std::is_same<filename_t::value_type, char>::value, fmt::MemoryWriter, fmt::WMemoryWriter>::type w;
+ w.write(SPDLOG_FILENAME_T("{}_{:04d}-{:02d}-{:02d}_{:02d}-{:02d}-{:02d}{}"), basename, tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday,
+ tm.tm_hour, tm.tm_min, tm.tm_sec, tmp_ext);
+ return std::make_tuple(w.str(), ext);
+ }
+};
+
+/*
+ * Rotating file sink based on size and a specified time step
+ */
+template<class Mutex, class FileNameCalc = default_step_file_name_calculator>
+class step_file_sink SPDLOG_FINAL : public base_sink<Mutex>
+{
+public:
+ step_file_sink(filename_t base_filename, unsigned step_seconds, filename_t tmp_ext, unsigned max_size, bool delete_empty_files,
+ filename_t file_header)
+ : _base_filename(std::move(base_filename))
+ , _tmp_ext(std::move(tmp_ext))
+ , _step_seconds(step_seconds)
+ , _max_size(max_size)
+ , _delete_empty_files(delete_empty_files)
+ {
+ if (step_seconds == 0)
+ {
+ throw spdlog_ex("step_file_sink: Invalid time step in ctor");
+ }
+
+ if (!file_header.empty())
+ {
+ pattern_formatter formatter_for_file_header("%v");
+ _file_header.raw << file_header;
+ formatter_for_file_header.format(_file_header);
+ }
+
+ if (max_size <= _file_header.formatted.size())
+ {
+ throw spdlog_ex("step_file_sink: Invalid max log size in ctor");
+ }
+
+ _tp = _next_tp();
+ std::tie(_current_filename, _ext) = FileNameCalc::calc_filename(_base_filename, _tmp_ext);
+
+ if (_tmp_ext == _ext)
+ {
+ throw spdlog_ex("step_file_sink: The temporary extension matches the specified in ctor");
+ }
+
+ _file_helper.open(_current_filename);
+ _current_size = _file_helper.size(); // expensive. called only once
+
+ if (!_current_size)
+ {
+ _current_size += _file_header.formatted.size();
+ if (_current_size)
+ _file_helper.write(_file_header);
+ }
+ }
+
+ ~step_file_sink()
+ {
+ try
+ {
+ close_current_file();
+ }
+ catch (...)
+ {
+ }
+ }
+
+protected:
+ void _sink_it(const details::log_msg &msg) override
+ {
+ auto msg_size = msg.formatted.size();
+
+ if (std::chrono::system_clock::now() >= _tp || _current_size + msg_size > _max_size)
+ {
+ filename_t new_filename;
+ std::tie(new_filename, std::ignore) = FileNameCalc::calc_filename(_base_filename, _tmp_ext);
+
+ bool change_occured = !details::file_helper::file_exists(new_filename);
+ if (change_occured)
+ {
+ close_current_file();
+
+ _current_filename = std::move(new_filename);
+
+ _file_helper.open(_current_filename);
+ }
+
+ _tp = _next_tp();
+
+ if (change_occured)
+ {
+ _current_size = _file_header.formatted.size();
+ if (_current_size)
+ _file_helper.write(_file_header);
+ }
+ }
+
+ _current_size += msg_size;
+ _file_helper.write(msg);
+ }
+
+ void _flush() override
+ {
+ _file_helper.flush();
+ }
+
+private:
+ std::chrono::system_clock::time_point _next_tp()
+ {
+ return std::chrono::system_clock::now() + _step_seconds;
+ }
+
+ void close_current_file()
+ {
+ using details::os::filename_to_str;
+
+ // Delete empty files, if required
+ if (_delete_empty_files && _current_size <= _file_header.formatted.size())
+ {
+ if (details::os::remove(_current_filename) != 0)
+ {
+ throw spdlog_ex("step_file_sink: not remove " + filename_to_str(_current_filename), errno);
+ }
+
+ return;
+ }
+
+ filename_t target;
+ std::tie(target, std::ignore) = details::file_helper::split_by_extenstion(_current_filename);
+ target += _ext;
+
+ if (details::file_helper::file_exists(_current_filename) && details::os::rename(_current_filename, target) != 0)
+ {
+ throw spdlog_ex(
+ "step_file_sink: failed renaming " + filename_to_str(_current_filename) + " to " + filename_to_str(target), errno);
+ }
+ }
+
+ const filename_t _base_filename;
+ const filename_t _tmp_ext;
+ const std::chrono::seconds _step_seconds;
+ const unsigned _max_size;
+ const bool _delete_empty_files;
+
+ std::chrono::system_clock::time_point _tp;
+ filename_t _current_filename;
+ filename_t _ext;
+ unsigned _current_size;
+
+ details::file_helper _file_helper;
+ details::log_msg _file_header;
+};
+
+using step_file_sink_mt = step_file_sink<std::mutex>;
+using step_file_sink_st = step_file_sink<details::null_mutex>;
+
+} // namespace sinks
+} // namespace spdlog
diff --git a/lib/spdlog/details/async_log_helper.h b/lib/spdlog/details/async_log_helper.h
new file mode 100644
index 0000000..49789b9
--- /dev/null
+++ b/lib/spdlog/details/async_log_helper.h
@@ -0,0 +1,333 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+// async log helper :
+// Process logs asynchronously using a back thread.
+//
+// If the internal queue of log messages reaches its max size,
+// then the client call will block until there is more room.
+//
+
+#pragma once
+
+#include "../common.h"
+#include "../details/log_msg.h"
+#include "../details/mpmc_blocking_q.h"
+#include "../details/os.h"
+#include "../formatter.h"
+#include "../sinks/sink.h"
+
+#include <chrono>
+#include <condition_variable>
+#include <exception>
+#include <functional>
+#include <memory>
+#include <string>
+#include <thread>
+#include <utility>
+#include <vector>
+
+namespace spdlog {
+namespace details {
+
+class async_log_helper
+{
+ // Async msg to move to/from the queue
+ // Movable only. should never be copied
+ enum class async_msg_type
+ {
+ log,
+ flush,
+ terminate
+ };
+
+ struct async_msg
+ {
+ level::level_enum level;
+ log_clock::time_point time;
+ size_t thread_id;
+ std::string txt;
+ async_msg_type msg_type;
+ size_t msg_id;
+
+ async_msg() = default;
+ ~async_msg() = default;
+
+ explicit async_msg(async_msg_type m_type)
+ : level(level::info)
+ , thread_id(0)
+ , msg_type(m_type)
+ , msg_id(0)
+ {
+ }
+
+ async_msg(async_msg &&other) = default;
+ async_msg &operator=(async_msg &&other) = default;
+
+ // never copy or assign. should only be moved..
+ async_msg(const async_msg &) = delete;
+ async_msg &operator=(const async_msg &other) = delete;
+
+ // construct from log_msg
+ explicit async_msg(const details::log_msg &m)
+ : level(m.level)
+ , time(m.time)
+ , thread_id(m.thread_id)
+ , txt(m.raw.data(), m.raw.size())
+ , msg_type(async_msg_type::log)
+ , msg_id(m.msg_id)
+ {
+ }
+
+ // copy into log_msg
+ void fill_log_msg(log_msg &msg, std::string *logger_name)
+ {
+ msg.logger_name = logger_name;
+ msg.level = level;
+ msg.time = time;
+ msg.thread_id = thread_id;
+ msg.raw.clear();
+ msg.raw << txt;
+ msg.msg_id = msg_id;
+ }
+ };
+
+public:
+ using item_type = async_msg;
+ using q_type = details::mpmc_bounded_queue<item_type>;
+
+ using clock = std::chrono::steady_clock;
+
+ async_log_helper(std::string logger_name, formatter_ptr formatter, std::vector<sink_ptr> sinks, size_t queue_size,
+ const log_err_handler err_handler, const async_overflow_policy overflow_policy = async_overflow_policy::block_retry,
+ std::function<void()> worker_warmup_cb = nullptr,
+ const std::chrono::milliseconds &flush_interval_ms = std::chrono::milliseconds::zero(),
+ std::function<void()> worker_teardown_cb = nullptr);
+
+ void log(const details::log_msg &msg);
+
+ // stop logging and join the back thread
+ ~async_log_helper();
+
+ async_log_helper(const async_log_helper &) = delete;
+ async_log_helper &operator=(const async_log_helper &) = delete;
+
+ void set_formatter(formatter_ptr msg_formatter);
+
+ void flush();
+
+ void set_error_handler(spdlog::log_err_handler err_handler);
+
+private:
+ std::string _logger_name;
+ formatter_ptr _formatter;
+ std::vector<std::shared_ptr<sinks::sink>> _sinks;
+
+ // queue of messages to log
+ q_type _q;
+
+ log_err_handler _err_handler;
+
+ std::chrono::time_point<log_clock> _last_flush;
+
+ // overflow policy
+ const async_overflow_policy _overflow_policy;
+
+ // worker thread warmup callback - one can set thread priority, affinity, etc
+ const std::function<void()> _worker_warmup_cb;
+
+ // auto periodic sink flush parameter
+ const std::chrono::milliseconds _flush_interval_ms;
+
+ // worker thread teardown callback
+ const std::function<void()> _worker_teardown_cb;
+
+ std::mutex null_mutex_;
+ // null_mutex null_mutex_;
+ std::condition_variable_any not_empty_cv_;
+ std::condition_variable_any not_full_cv_;
+
+ // worker thread
+ std::thread _worker_thread;
+
+ void enqueue_msg(async_msg &&new_msg, async_overflow_policy policy);
+
+ // worker thread main loop
+ void worker_loop();
+
+ // dequeue next message from the queue and process it.
+ // return false if termination of the queue is required
+ bool process_next_msg();
+
+ void handle_flush_interval();
+
+ void flush_sinks();
+};
+} // namespace details
+} // namespace spdlog
+
+///////////////////////////////////////////////////////////////////////////////
+// async_sink class implementation
+///////////////////////////////////////////////////////////////////////////////
+inline spdlog::details::async_log_helper::async_log_helper(std::string logger_name, formatter_ptr formatter, std::vector<sink_ptr> sinks,
+ size_t queue_size, log_err_handler err_handler, const async_overflow_policy overflow_policy, std::function<void()> worker_warmup_cb,
+ const std::chrono::milliseconds &flush_interval_ms, std::function<void()> worker_teardown_cb)
+ : _logger_name(std::move(logger_name))
+ , _formatter(std::move(formatter))
+ , _sinks(std::move(sinks))
+ , _q(queue_size)
+ , _err_handler(std::move(err_handler))
+ , _last_flush(os::now())
+ , _overflow_policy(overflow_policy)
+ , _worker_warmup_cb(std::move(worker_warmup_cb))
+ , _flush_interval_ms(flush_interval_ms)
+ , _worker_teardown_cb(std::move(worker_teardown_cb))
+{
+ _worker_thread = std::thread(&async_log_helper::worker_loop, this);
+}
+
+// send to the worker thread terminate message, and join it.
+inline spdlog::details::async_log_helper::~async_log_helper()
+{
+ try
+ {
+ enqueue_msg(async_msg(async_msg_type::terminate), async_overflow_policy::block_retry);
+ _worker_thread.join();
+ }
+ catch (...) // don't crash in destructor
+ {
+ }
+}
+
+// try to push and block until succeeded (if the policy is not to discard when the queue is full)
+inline void spdlog::details::async_log_helper::log(const details::log_msg &msg)
+{
+ enqueue_msg(async_msg(msg), _overflow_policy);
+}
+
+inline void spdlog::details::async_log_helper::enqueue_msg(details::async_log_helper::async_msg &&new_msg, async_overflow_policy policy)
+{
+
+ // block until succeeded pushing to the queue
+ if (policy == async_overflow_policy::block_retry)
+ {
+ _q.enqueue(std::move(new_msg));
+ }
+ else
+ {
+ _q.enqueue_nowait(std::move(new_msg));
+ }
+}
+
+// optionally wait for the queue be empty and request flush from the sinks
+inline void spdlog::details::async_log_helper::flush()
+{
+ enqueue_msg(async_msg(async_msg_type::flush), _overflow_policy);
+}
+
+inline void spdlog::details::async_log_helper::worker_loop()
+{
+ if (_worker_warmup_cb)
+ {
+ _worker_warmup_cb();
+ }
+ auto active = true;
+ while (active)
+ {
+ try
+ {
+ active = process_next_msg();
+ }
+ SPDLOG_CATCH_AND_HANDLE
+ }
+ if (_worker_teardown_cb)
+ {
+ _worker_teardown_cb();
+ }
+}
+
+// process next message in the queue
+// return true if this thread should still be active (while no terminate msg was received)
+inline bool spdlog::details::async_log_helper::process_next_msg()
+{
+ async_msg incoming_async_msg;
+ bool dequeued = _q.dequeue_for(incoming_async_msg, std::chrono::seconds(2));
+ if (!dequeued)
+ {
+ handle_flush_interval();
+ return true;
+ }
+
+ switch (incoming_async_msg.msg_type)
+ {
+ case async_msg_type::flush:
+ flush_sinks();
+ return true;
+
+ case async_msg_type::terminate:
+ flush_sinks();
+ return false;
+
+ default:
+ log_msg incoming_log_msg;
+ incoming_async_msg.fill_log_msg(incoming_log_msg, &_logger_name);
+ _formatter->format(incoming_log_msg);
+ for (auto &s : _sinks)
+ {
+ if (s->should_log(incoming_log_msg.level))
+ {
+ try
+ {
+ s->log(incoming_log_msg);
+ }
+ SPDLOG_CATCH_AND_HANDLE
+ }
+ }
+ handle_flush_interval();
+ return true;
+ }
+ assert(false);
+ return true; // should not be reached
+}
+
+inline void spdlog::details::async_log_helper::set_formatter(formatter_ptr msg_formatter)
+{
+ _formatter = std::move(msg_formatter);
+}
+
+inline void spdlog::details::async_log_helper::set_error_handler(spdlog::log_err_handler err_handler)
+{
+ _err_handler = std::move(err_handler);
+}
+
+// flush all sinks if _flush_interval_ms has expired.
+inline void spdlog::details::async_log_helper::handle_flush_interval()
+{
+ if (_flush_interval_ms == std::chrono::milliseconds::zero())
+ {
+ return;
+ }
+ auto delta = details::os::now() - _last_flush;
+ ;
+ if (delta >= _flush_interval_ms)
+ {
+ flush_sinks();
+ }
+}
+
+// flush all sinks if _flush_interval_ms has expired. only called if queue is empty
+inline void spdlog::details::async_log_helper::flush_sinks()
+{
+
+ for (auto &s : _sinks)
+ {
+ try
+ {
+ s->flush();
+ }
+ SPDLOG_CATCH_AND_HANDLE
+ }
+ _last_flush = os::now();
+}
diff --git a/lib/spdlog/details/async_logger_impl.h b/lib/spdlog/details/async_logger_impl.h
new file mode 100644
index 0000000..33ab4b9
--- /dev/null
+++ b/lib/spdlog/details/async_logger_impl.h
@@ -0,0 +1,95 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+// Async Logger implementation
+// Use an async_sink (queue per logger) to perform the logging in a worker thread
+
+#include "../async_logger.h"
+#include "../details/async_log_helper.h"
+
+#include <chrono>
+#include <functional>
+#include <memory>
+#include <string>
+
+template<class It>
+inline spdlog::async_logger::async_logger(const std::string &logger_name, const It &begin, const It &end, size_t queue_size,
+ const async_overflow_policy overflow_policy, const std::function<void()> &worker_warmup_cb,
+ const std::chrono::milliseconds &flush_interval_ms, const std::function<void()> &worker_teardown_cb)
+ : logger(logger_name, begin, end)
+ , _async_log_helper(new details::async_log_helper(logger_name, _formatter, _sinks, queue_size, _err_handler, overflow_policy,
+ worker_warmup_cb, flush_interval_ms, worker_teardown_cb))
+{
+}
+
+inline spdlog::async_logger::async_logger(const std::string &logger_name, sinks_init_list sinks_list, size_t queue_size,
+ const async_overflow_policy overflow_policy, const std::function<void()> &worker_warmup_cb,
+ const std::chrono::milliseconds &flush_interval_ms, const std::function<void()> &worker_teardown_cb)
+ : async_logger(logger_name, sinks_list.begin(), sinks_list.end(), queue_size, overflow_policy, worker_warmup_cb, flush_interval_ms,
+ worker_teardown_cb)
+{
+}
+
+inline spdlog::async_logger::async_logger(const std::string &logger_name, sink_ptr single_sink, size_t queue_size,
+ const async_overflow_policy overflow_policy, const std::function<void()> &worker_warmup_cb,
+ const std::chrono::milliseconds &flush_interval_ms, const std::function<void()> &worker_teardown_cb)
+ : async_logger(
+ logger_name, {std::move(single_sink)}, queue_size, overflow_policy, worker_warmup_cb, flush_interval_ms, worker_teardown_cb)
+{
+}
+
+inline void spdlog::async_logger::flush()
+{
+ _async_log_helper->flush();
+}
+
+// Error handler
+inline void spdlog::async_logger::set_error_handler(spdlog::log_err_handler err_handler)
+{
+ _err_handler = err_handler;
+ _async_log_helper->set_error_handler(err_handler);
+}
+inline spdlog::log_err_handler spdlog::async_logger::error_handler()
+{
+ return _err_handler;
+}
+
+inline void spdlog::async_logger::_set_formatter(spdlog::formatter_ptr msg_formatter)
+{
+ _formatter = msg_formatter;
+ _async_log_helper->set_formatter(_formatter);
+}
+
+inline void spdlog::async_logger::_set_pattern(const std::string &pattern, pattern_time_type pattern_time)
+{
+ _formatter = std::make_shared<pattern_formatter>(pattern, pattern_time);
+ _async_log_helper->set_formatter(_formatter);
+}
+
+inline void spdlog::async_logger::_sink_it(details::log_msg &msg)
+{
+ try
+ {
+#if defined(SPDLOG_ENABLE_MESSAGE_COUNTER)
+ _incr_msg_counter(msg);
+#endif
+ _async_log_helper->log(msg);
+ if (_should_flush_on(msg))
+ {
+ _async_log_helper->flush(); // do async flush
+ }
+ }
+ catch (const std::exception &ex)
+ {
+ _err_handler(ex.what());
+ }
+ catch (...)
+ {
+ _err_handler("Unknown exception in logger " + _name);
+ throw;
+ }
+}
diff --git a/lib/spdlog/details/file_helper.h b/lib/spdlog/details/file_helper.h
new file mode 100644
index 0000000..d30a79b
--- /dev/null
+++ b/lib/spdlog/details/file_helper.h
@@ -0,0 +1,151 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+// Helper class for file sink
+// When failing to open a file, retry several times(5) with small delay between the tries(10 ms)
+// Throw spdlog_ex exception on errors
+
+#include "../details/log_msg.h"
+#include "../details/os.h"
+
+#include <cerrno>
+#include <chrono>
+#include <cstdio>
+#include <string>
+#include <thread>
+#include <tuple>
+
+namespace spdlog {
+namespace details {
+
+class file_helper
+{
+
+public:
+ const int open_tries = 5;
+ const int open_interval = 10;
+
+ explicit file_helper() = default;
+
+ file_helper(const file_helper &) = delete;
+ file_helper &operator=(const file_helper &) = delete;
+
+ ~file_helper()
+ {
+ close();
+ }
+
+ void open(const filename_t &fname, bool truncate = false)
+ {
+ close();
+ auto *mode = truncate ? SPDLOG_FILENAME_T("wb") : SPDLOG_FILENAME_T("ab");
+ _filename = fname;
+ for (int tries = 0; tries < open_tries; ++tries)
+ {
+ if (!os::fopen_s(&_fd, fname, mode))
+ {
+ return;
+ }
+
+ details::os::sleep_for_millis(open_interval);
+ }
+
+ throw spdlog_ex("Failed opening file " + os::filename_to_str(_filename) + " for writing", errno);
+ }
+
+ void reopen(bool truncate)
+ {
+ if (_filename.empty())
+ {
+ throw spdlog_ex("Failed re opening file - was not opened before");
+ }
+ open(_filename, truncate);
+ }
+
+ void flush()
+ {
+ std::fflush(_fd);
+ }
+
+ void close()
+ {
+ if (_fd != nullptr)
+ {
+ std::fclose(_fd);
+ _fd = nullptr;
+ }
+ }
+
+ void write(const log_msg &msg)
+ {
+ size_t msg_size = msg.formatted.size();
+ auto data = msg.formatted.data();
+ if (std::fwrite(data, 1, msg_size, _fd) != msg_size)
+ {
+ throw spdlog_ex("Failed writing to file " + os::filename_to_str(_filename), errno);
+ }
+ }
+
+ size_t size() const
+ {
+ if (_fd == nullptr)
+ {
+ throw spdlog_ex("Cannot use size() on closed file " + os::filename_to_str(_filename));
+ }
+ return os::filesize(_fd);
+ }
+
+ const filename_t &filename() const
+ {
+ return _filename;
+ }
+
+ static bool file_exists(const filename_t &fname)
+ {
+ return os::file_exists(fname);
+ }
+
+ //
+ // return file path and its extension:
+ //
+ // "mylog.txt" => ("mylog", ".txt")
+ // "mylog" => ("mylog", "")
+ // "mylog." => ("mylog.", "")
+ // "/dir1/dir2/mylog.txt" => ("/dir1/dir2/mylog", ".txt")
+ //
+ // the starting dot in filenames is ignored (hidden files):
+ //
+ // ".mylog" => (".mylog". "")
+ // "my_folder/.mylog" => ("my_folder/.mylog", "")
+ // "my_folder/.mylog.txt" => ("my_folder/.mylog", ".txt")
+ static std::tuple<filename_t, filename_t> split_by_extenstion(const spdlog::filename_t &fname)
+ {
+ auto ext_index = fname.rfind('.');
+
+ // no valid extension found - return whole path and empty string as extension
+ if (ext_index == filename_t::npos || ext_index == 0 || ext_index == fname.size() - 1)
+ {
+ return std::make_tuple(fname, spdlog::filename_t());
+ }
+
+ // treat casese like "/etc/rc.d/somelogfile or "/abc/.hiddenfile"
+ auto folder_index = fname.rfind(details::os::folder_sep);
+ if (folder_index != fname.npos && folder_index >= ext_index - 1)
+ {
+ return std::make_tuple(fname, spdlog::filename_t());
+ }
+
+ // finally - return a valid base and extension tuple
+ return std::make_tuple(fname.substr(0, ext_index), fname.substr(ext_index));
+ }
+
+private:
+ FILE *_fd{nullptr};
+ filename_t _filename;
+};
+} // namespace details
+} // namespace spdlog
diff --git a/lib/spdlog/details/log_msg.h b/lib/spdlog/details/log_msg.h
new file mode 100644
index 0000000..1d079aa
--- /dev/null
+++ b/lib/spdlog/details/log_msg.h
@@ -0,0 +1,48 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+#include "../common.h"
+#include "../details/os.h"
+
+#include <string>
+#include <utility>
+
+namespace spdlog {
+namespace details {
+struct log_msg
+{
+ log_msg() = default;
+ log_msg(const std::string *loggers_name, level::level_enum lvl)
+ : logger_name(loggers_name)
+ , level(lvl)
+ {
+#ifndef SPDLOG_NO_DATETIME
+ time = os::now();
+#endif
+
+#ifndef SPDLOG_NO_THREAD_ID
+ thread_id = os::thread_id();
+#endif
+ }
+
+ log_msg(const log_msg &other) = delete;
+ log_msg &operator=(log_msg &&other) = delete;
+ log_msg(log_msg &&other) = delete;
+
+ const std::string *logger_name{nullptr};
+ level::level_enum level;
+ log_clock::time_point time;
+ size_t thread_id;
+ fmt::MemoryWriter raw;
+ fmt::MemoryWriter formatted;
+ size_t msg_id{0};
+ // wrap this range with color codes
+ size_t color_range_start{0};
+ size_t color_range_end{0};
+};
+} // namespace details
+} // namespace spdlog
diff --git a/lib/spdlog/details/logger_impl.h b/lib/spdlog/details/logger_impl.h
new file mode 100644
index 0000000..084ecdd
--- /dev/null
+++ b/lib/spdlog/details/logger_impl.h
@@ -0,0 +1,348 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+#include "../logger.h"
+
+#include <memory>
+#include <string>
+
+// create logger with given name, sinks and the default pattern formatter
+// all other ctors will call this one
+template<class It>
+inline spdlog::logger::logger(std::string logger_name, const It &begin, const It &end)
+ : _name(std::move(logger_name))
+ , _sinks(begin, end)
+ , _formatter(std::make_shared<pattern_formatter>("%+"))
+ , _level(level::info)
+ , _flush_level(level::off)
+ , _last_err_time(0)
+ , _msg_counter(1) // message counter will start from 1. 0-message id will be reserved for controll messages
+{
+ _err_handler = [this](const std::string &msg) { this->_default_err_handler(msg); };
+}
+
+// ctor with sinks as init list
+inline spdlog::logger::logger(const std::string &logger_name, sinks_init_list sinks_list)
+ : logger(logger_name, sinks_list.begin(), sinks_list.end())
+{
+}
+
+// ctor with single sink
+inline spdlog::logger::logger(const std::string &logger_name, spdlog::sink_ptr single_sink)
+ : logger(logger_name, {std::move(single_sink)})
+{
+}
+
+inline spdlog::logger::~logger() = default;
+
+inline void spdlog::logger::set_formatter(spdlog::formatter_ptr msg_formatter)
+{
+ _set_formatter(std::move(msg_formatter));
+}
+
+inline void spdlog::logger::set_pattern(const std::string &pattern, pattern_time_type pattern_time)
+{
+ _set_pattern(pattern, pattern_time);
+}
+
+template<typename... Args>
+inline void spdlog::logger::log(level::level_enum lvl, const char *fmt, const Args &... args)
+{
+ if (!should_log(lvl))
+ {
+ return;
+ }
+
+ try
+ {
+ details::log_msg log_msg(&_name, lvl);
+
+#if defined(SPDLOG_FMT_PRINTF)
+ fmt::printf(log_msg.raw, fmt, args...);
+#else
+ log_msg.raw.write(fmt, args...);
+#endif
+ _sink_it(log_msg);
+ }
+ SPDLOG_CATCH_AND_HANDLE
+}
+
+template<typename... Args>
+inline void spdlog::logger::log(level::level_enum lvl, const char *msg)
+{
+ if (!should_log(lvl))
+ {
+ return;
+ }
+ try
+ {
+ details::log_msg log_msg(&_name, lvl);
+ log_msg.raw << msg;
+ _sink_it(log_msg);
+ }
+ SPDLOG_CATCH_AND_HANDLE
+}
+
+template<typename T>
+inline void spdlog::logger::log(level::level_enum lvl, const T &msg)
+{
+ if (!should_log(lvl))
+ {
+ return;
+ }
+ try
+ {
+ details::log_msg log_msg(&_name, lvl);
+ log_msg.raw << msg;
+ _sink_it(log_msg);
+ }
+ SPDLOG_CATCH_AND_HANDLE
+}
+
+template<typename Arg1, typename... Args>
+inline void spdlog::logger::trace(const char *fmt, const Arg1 &arg1, const Args &... args)
+{
+ log(level::trace, fmt, arg1, args...);
+}
+
+template<typename Arg1, typename... Args>
+inline void spdlog::logger::debug(const char *fmt, const Arg1 &arg1, const Args &... args)
+{
+ log(level::debug, fmt, arg1, args...);
+}
+
+template<typename Arg1, typename... Args>
+inline void spdlog::logger::info(const char *fmt, const Arg1 &arg1, const Args &... args)
+{
+ log(level::info, fmt, arg1, args...);
+}
+
+template<typename Arg1, typename... Args>
+inline void spdlog::logger::warn(const char *fmt, const Arg1 &arg1, const Args &... args)
+{
+ log(level::warn, fmt, arg1, args...);
+}
+
+template<typename Arg1, typename... Args>
+inline void spdlog::logger::error(const char *fmt, const Arg1 &arg1, const Args &... args)
+{
+ log(level::err, fmt, arg1, args...);
+}
+
+template<typename Arg1, typename... Args>
+inline void spdlog::logger::critical(const char *fmt, const Arg1 &arg1, const Args &... args)
+{
+ log(level::critical, fmt, arg1, args...);
+}
+
+template<typename T>
+inline void spdlog::logger::trace(const T &msg)
+{
+ log(level::trace, msg);
+}
+
+template<typename T>
+inline void spdlog::logger::debug(const T &msg)
+{
+ log(level::debug, msg);
+}
+
+template<typename T>
+inline void spdlog::logger::info(const T &msg)
+{
+ log(level::info, msg);
+}
+
+template<typename T>
+inline void spdlog::logger::warn(const T &msg)
+{
+ log(level::warn, msg);
+}
+
+template<typename T>
+inline void spdlog::logger::error(const T &msg)
+{
+ log(level::err, msg);
+}
+
+template<typename T>
+inline void spdlog::logger::critical(const T &msg)
+{
+ log(level::critical, msg);
+}
+
+#ifdef SPDLOG_WCHAR_TO_UTF8_SUPPORT
+#include <codecvt>
+#include <locale>
+
+template<typename... Args>
+inline void spdlog::logger::log(level::level_enum lvl, const wchar_t *msg)
+{
+ std::wstring_convert<std::codecvt_utf8<wchar_t>> conv;
+
+ log(lvl, conv.to_bytes(msg));
+}
+
+template<typename... Args>
+inline void spdlog::logger::log(level::level_enum lvl, const wchar_t *fmt, const Args &... args)
+{
+ fmt::WMemoryWriter wWriter;
+
+ wWriter.write(fmt, args...);
+ log(lvl, wWriter.c_str());
+}
+
+template<typename... Args>
+inline void spdlog::logger::trace(const wchar_t *fmt, const Args &... args)
+{
+ log(level::trace, fmt, args...);
+}
+
+template<typename... Args>
+inline void spdlog::logger::debug(const wchar_t *fmt, const Args &... args)
+{
+ log(level::debug, fmt, args...);
+}
+
+template<typename... Args>
+inline void spdlog::logger::info(const wchar_t *fmt, const Args &... args)
+{
+ log(level::info, fmt, args...);
+}
+
+template<typename... Args>
+inline void spdlog::logger::warn(const wchar_t *fmt, const Args &... args)
+{
+ log(level::warn, fmt, args...);
+}
+
+template<typename... Args>
+inline void spdlog::logger::error(const wchar_t *fmt, const Args &... args)
+{
+ log(level::err, fmt, args...);
+}
+
+template<typename... Args>
+inline void spdlog::logger::critical(const wchar_t *fmt, const Args &... args)
+{
+ log(level::critical, fmt, args...);
+}
+
+#endif // SPDLOG_WCHAR_TO_UTF8_SUPPORT
+
+//
+// name and level
+//
+inline const std::string &spdlog::logger::name() const
+{
+ return _name;
+}
+
+inline void spdlog::logger::set_level(spdlog::level::level_enum log_level)
+{
+ _level.store(log_level);
+}
+
+inline void spdlog::logger::set_error_handler(spdlog::log_err_handler err_handler)
+{
+ _err_handler = std::move(err_handler);
+}
+
+inline spdlog::log_err_handler spdlog::logger::error_handler()
+{
+ return _err_handler;
+}
+
+inline void spdlog::logger::flush_on(level::level_enum log_level)
+{
+ _flush_level.store(log_level);
+}
+
+inline spdlog::level::level_enum spdlog::logger::level() const
+{
+ return static_cast<spdlog::level::level_enum>(_level.load(std::memory_order_relaxed));
+}
+
+inline bool spdlog::logger::should_log(spdlog::level::level_enum msg_level) const
+{
+ return msg_level >= _level.load(std::memory_order_relaxed);
+}
+
+//
+// protected virtual called at end of each user log call (if enabled) by the line_logger
+//
+inline void spdlog::logger::_sink_it(details::log_msg &msg)
+{
+#if defined(SPDLOG_ENABLE_MESSAGE_COUNTER)
+ _incr_msg_counter(msg);
+#endif
+ _formatter->format(msg);
+ for (auto &sink : _sinks)
+ {
+ if (sink->should_log(msg.level))
+ {
+ sink->log(msg);
+ }
+ }
+
+ if (_should_flush_on(msg))
+ {
+ flush();
+ }
+}
+
+inline void spdlog::logger::_set_pattern(const std::string &pattern, pattern_time_type pattern_time)
+{
+ _formatter = std::make_shared<pattern_formatter>(pattern, pattern_time);
+}
+
+inline void spdlog::logger::_set_formatter(formatter_ptr msg_formatter)
+{
+ _formatter = std::move(msg_formatter);
+}
+
+inline void spdlog::logger::flush()
+{
+ try
+ {
+ for (auto &sink : _sinks)
+ {
+ sink->flush();
+ }
+ }
+ SPDLOG_CATCH_AND_HANDLE
+}
+
+inline void spdlog::logger::_default_err_handler(const std::string &msg)
+{
+ auto now = time(nullptr);
+ if (now - _last_err_time < 60)
+ {
+ return;
+ }
+ _last_err_time = now;
+ auto tm_time = details::os::localtime(now);
+ char date_buf[100];
+ std::strftime(date_buf, sizeof(date_buf), "%Y-%m-%d %H:%M:%S", &tm_time);
+ fmt::print(stderr, "[*** LOG ERROR ***] [{}] [{}] {}\n", date_buf, name(), msg);
+}
+
+inline bool spdlog::logger::_should_flush_on(const details::log_msg &msg)
+{
+ const auto flush_level = _flush_level.load(std::memory_order_relaxed);
+ return (msg.level >= flush_level) && (msg.level != level::off);
+}
+
+inline void spdlog::logger::_incr_msg_counter(details::log_msg &msg)
+{
+ msg.msg_id = _msg_counter.fetch_add(1, std::memory_order_relaxed);
+}
+
+inline const std::vector<spdlog::sink_ptr> &spdlog::logger::sinks() const
+{
+ return _sinks;
+}
diff --git a/lib/spdlog/details/mpmc_blocking_q.h b/lib/spdlog/details/mpmc_blocking_q.h
new file mode 100644
index 0000000..d4a8a41
--- /dev/null
+++ b/lib/spdlog/details/mpmc_blocking_q.h
@@ -0,0 +1,84 @@
+#pragma once
+
+//
+// Copyright(c) 2018 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+// async log helper :
+// multi producer-multi consumer blocking queue
+// enqueue(..) - will block until room found to put the new message
+// enqueue_nowait(..) - will return immediatly with false if no room left in the queue
+// dequeue_for(..) - will block until the queue is not empty or timeout passed
+
+#include <condition_variable>
+#include <mutex>
+#include <queue>
+
+namespace spdlog {
+namespace details {
+
+template<typename T>
+class mpmc_bounded_queue
+{
+public:
+ using item_type = T;
+ explicit mpmc_bounded_queue(size_t max_items)
+ : max_items_(max_items)
+ {
+ }
+
+ // try to enqueue and block if no room left
+ void enqueue(T &&item)
+ {
+ {
+ std::unique_lock<std::mutex> lock(queue_mutex_);
+ pop_cv_.wait(lock, [this] { return this->q_.size() < this->max_items_; });
+ q_.push(std::move(item));
+ }
+ push_cv_.notify_one();
+ }
+
+ // try to enqueue and return immdeialty false if no room left
+ bool enqueue_nowait(T &&item)
+ {
+ {
+ std::unique_lock<std::mutex> lock(queue_mutex_);
+ if (q_.size() == this->max_items_)
+ {
+ return false;
+ }
+ q_.push(std::forward<T>(item));
+ }
+ push_cv_.notify_one();
+ return true;
+ }
+
+ // try to dequeue item. if no item found. wait upto timeout and try again
+ // Return true, if succeeded dequeue item, false otherwise
+ bool dequeue_for(T &popped_item, std::chrono::milliseconds wait_duration)
+ {
+ {
+ std::unique_lock<std::mutex> lock(queue_mutex_);
+ if (!push_cv_.wait_for(lock, wait_duration, [this] { return this->q_.size() > 0; }))
+ {
+ return false;
+ }
+
+ popped_item = std::move(q_.front());
+ q_.pop();
+ }
+ pop_cv_.notify_one();
+ return true;
+ }
+
+private:
+ size_t max_items_;
+ std::mutex queue_mutex_;
+ std::condition_variable push_cv_;
+ std::condition_variable pop_cv_;
+
+ std::queue<T> q_;
+};
+} // namespace details
+} // namespace spdlog
diff --git a/lib/spdlog/details/null_mutex.h b/lib/spdlog/details/null_mutex.h
new file mode 100644
index 0000000..3f495bd
--- /dev/null
+++ b/lib/spdlog/details/null_mutex.h
@@ -0,0 +1,45 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+#include <atomic>
+// null, no cost dummy "mutex" and dummy "atomic" int
+
+namespace spdlog {
+namespace details {
+struct null_mutex
+{
+ void lock() {}
+ void unlock() {}
+ bool try_lock()
+ {
+ return true;
+ }
+};
+
+struct null_atomic_int
+{
+ int value;
+ null_atomic_int() = default;
+
+ explicit null_atomic_int(int val)
+ : value(val)
+ {
+ }
+
+ int load(std::memory_order) const
+ {
+ return value;
+ }
+
+ void store(int val)
+ {
+ value = val;
+ }
+};
+
+} // namespace details
+} // namespace spdlog
diff --git a/lib/spdlog/details/os.h b/lib/spdlog/details/os.h
new file mode 100644
index 0000000..28eb53c
--- /dev/null
+++ b/lib/spdlog/details/os.h
@@ -0,0 +1,431 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+#pragma once
+
+#include "../common.h"
+
+#include <algorithm>
+#include <chrono>
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+#include <ctime>
+#include <functional>
+#include <string>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <thread>
+
+#ifdef _WIN32
+
+#ifndef NOMINMAX
+#define NOMINMAX // prevent windows redefining min/max
+#endif
+
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include <io.h> // _get_osfhandle and _isatty support
+#include <process.h> // _get_pid support
+#include <windows.h>
+
+#ifdef __MINGW32__
+#include <share.h>
+#endif
+
+#else // unix
+
+#include <fcntl.h>
+#include <unistd.h>
+
+#ifdef __linux__
+#include <sys/syscall.h> //Use gettid() syscall under linux to get thread id
+
+#elif __FreeBSD__
+#include <sys/thr.h> //Use thr_self() syscall under FreeBSD to get thread id
+#endif
+
+#endif // unix
+
+#ifndef __has_feature // Clang - feature checking macros.
+#define __has_feature(x) 0 // Compatibility with non-clang compilers.
+#endif
+
+namespace spdlog {
+namespace details {
+namespace os {
+
+inline spdlog::log_clock::time_point now()
+{
+
+#if defined __linux__ && defined SPDLOG_CLOCK_COARSE
+ timespec ts;
+ ::clock_gettime(CLOCK_REALTIME_COARSE, &ts);
+ return std::chrono::time_point<log_clock, typename log_clock::duration>(
+ std::chrono::duration_cast<typename log_clock::duration>(std::chrono::seconds(ts.tv_sec) + std::chrono::nanoseconds(ts.tv_nsec)));
+
+#else
+ return log_clock::now();
+#endif
+}
+inline std::tm localtime(const std::time_t &time_tt)
+{
+
+#ifdef _WIN32
+ std::tm tm;
+ localtime_s(&tm, &time_tt);
+#else
+ std::tm tm;
+ localtime_r(&time_tt, &tm);
+#endif
+ return tm;
+}
+
+inline std::tm localtime()
+{
+ std::time_t now_t = time(nullptr);
+ return localtime(now_t);
+}
+
+inline std::tm gmtime(const std::time_t &time_tt)
+{
+
+#ifdef _WIN32
+ std::tm tm;
+ gmtime_s(&tm, &time_tt);
+#else
+ std::tm tm;
+ gmtime_r(&time_tt, &tm);
+#endif
+ return tm;
+}
+
+inline std::tm gmtime()
+{
+ std::time_t now_t = time(nullptr);
+ return gmtime(now_t);
+}
+inline bool operator==(const std::tm &tm1, const std::tm &tm2)
+{
+ return (tm1.tm_sec == tm2.tm_sec && tm1.tm_min == tm2.tm_min && tm1.tm_hour == tm2.tm_hour && tm1.tm_mday == tm2.tm_mday &&
+ tm1.tm_mon == tm2.tm_mon && tm1.tm_year == tm2.tm_year && tm1.tm_isdst == tm2.tm_isdst);
+}
+
+inline bool operator!=(const std::tm &tm1, const std::tm &tm2)
+{
+ return !(tm1 == tm2);
+}
+
+// eol definition
+#if !defined(SPDLOG_EOL)
+#ifdef _WIN32
+#define SPDLOG_EOL "\r\n"
+#else
+#define SPDLOG_EOL "\n"
+#endif
+#endif
+
+SPDLOG_CONSTEXPR static const char *default_eol = SPDLOG_EOL;
+
+// folder separator
+#ifdef _WIN32
+SPDLOG_CONSTEXPR static const char folder_sep = '\\';
+#else
+SPDLOG_CONSTEXPR static const char folder_sep = '/';
+#endif
+
+inline void prevent_child_fd(FILE *f)
+{
+
+#ifdef _WIN32
+#if !defined(__cplusplus_winrt)
+ auto file_handle = (HANDLE)_get_osfhandle(_fileno(f));
+ if (!::SetHandleInformation(file_handle, HANDLE_FLAG_INHERIT, 0))
+ throw spdlog_ex("SetHandleInformation failed", errno);
+#endif
+#else
+ auto fd = fileno(f);
+ if (fcntl(fd, F_SETFD, FD_CLOEXEC) == -1)
+ {
+ throw spdlog_ex("fcntl with FD_CLOEXEC failed", errno);
+ }
+#endif
+}
+
+// fopen_s on non windows for writing
+inline bool fopen_s(FILE **fp, const filename_t &filename, const filename_t &mode)
+{
+#ifdef _WIN32
+#ifdef SPDLOG_WCHAR_FILENAMES
+ *fp = _wfsopen((filename.c_str()), mode.c_str(), _SH_DENYWR);
+#else
+ *fp = _fsopen((filename.c_str()), mode.c_str(), _SH_DENYWR);
+#endif
+#else // unix
+ *fp = fopen((filename.c_str()), mode.c_str());
+#endif
+
+#ifdef SPDLOG_PREVENT_CHILD_FD
+ if (*fp != nullptr)
+ {
+ prevent_child_fd(*fp);
+ }
+#endif
+ return *fp == nullptr;
+}
+
+inline int remove(const filename_t &filename)
+{
+#if defined(_WIN32) && defined(SPDLOG_WCHAR_FILENAMES)
+ return _wremove(filename.c_str());
+#else
+ return std::remove(filename.c_str());
+#endif
+}
+
+inline int rename(const filename_t &filename1, const filename_t &filename2)
+{
+#if defined(_WIN32) && defined(SPDLOG_WCHAR_FILENAMES)
+ return _wrename(filename1.c_str(), filename2.c_str());
+#else
+ return std::rename(filename1.c_str(), filename2.c_str());
+#endif
+}
+
+// Return if file exists
+inline bool file_exists(const filename_t &filename)
+{
+#ifdef _WIN32
+#ifdef SPDLOG_WCHAR_FILENAMES
+ auto attribs = GetFileAttributesW(filename.c_str());
+#else
+ auto attribs = GetFileAttributesA(filename.c_str());
+#endif
+ return (attribs != INVALID_FILE_ATTRIBUTES && !(attribs & FILE_ATTRIBUTE_DIRECTORY));
+#else // common linux/unix all have the stat system call
+ struct stat buffer;
+ return (stat(filename.c_str(), &buffer) == 0);
+#endif
+}
+
+// Return file size according to open FILE* object
+inline size_t filesize(FILE *f)
+{
+ if (f == nullptr)
+ {
+ throw spdlog_ex("Failed getting file size. fd is null");
+ }
+#if defined(_WIN32) && !defined(__CYGWIN__)
+ int fd = _fileno(f);
+#if _WIN64 // 64 bits
+ struct _stat64 st;
+ if (_fstat64(fd, &st) == 0)
+ {
+ return st.st_size;
+ }
+
+#else // windows 32 bits
+ long ret = _filelength(fd);
+ if (ret >= 0)
+ {
+ return static_cast<size_t>(ret);
+ }
+#endif
+
+#else // unix
+ int fd = fileno(f);
+ // 64 bits(but not in osx or cygwin, where fstat64 is deprecated)
+#if !defined(__FreeBSD__) && !defined(__APPLE__) && (defined(__x86_64__) || defined(__ppc64__)) && !defined(__CYGWIN__)
+ struct stat64 st;
+ if (fstat64(fd, &st) == 0)
+ {
+ return static_cast<size_t>(st.st_size);
+ }
+#else // unix 32 bits or cygwin
+ struct stat st;
+
+ if (fstat(fd, &st) == 0)
+ {
+ return static_cast<size_t>(st.st_size);
+ }
+#endif
+#endif
+ throw spdlog_ex("Failed getting file size from fd", errno);
+}
+
+// Return utc offset in minutes or throw spdlog_ex on failure
+inline int utc_minutes_offset(const std::tm &tm = details::os::localtime())
+{
+
+#ifdef _WIN32
+#if _WIN32_WINNT < _WIN32_WINNT_WS08
+ TIME_ZONE_INFORMATION tzinfo;
+ auto rv = GetTimeZoneInformation(&tzinfo);
+#else
+ DYNAMIC_TIME_ZONE_INFORMATION tzinfo;
+ auto rv = GetDynamicTimeZoneInformation(&tzinfo);
+#endif
+ if (rv == TIME_ZONE_ID_INVALID)
+ throw spdlog::spdlog_ex("Failed getting timezone info. ", errno);
+
+ int offset = -tzinfo.Bias;
+ if (tm.tm_isdst)
+ {
+ offset -= tzinfo.DaylightBias;
+ }
+ else
+ {
+ offset -= tzinfo.StandardBias;
+ }
+ return offset;
+#else
+
+#if defined(sun) || defined(__sun) || defined(_AIX)
+ // 'tm_gmtoff' field is BSD extension and it's missing on SunOS/Solaris
+ struct helper
+ {
+ static long int calculate_gmt_offset(const std::tm &localtm = details::os::localtime(), const std::tm &gmtm = details::os::gmtime())
+ {
+ int local_year = localtm.tm_year + (1900 - 1);
+ int gmt_year = gmtm.tm_year + (1900 - 1);
+
+ long int days = (
+ // difference in day of year
+ localtm.tm_yday -
+ gmtm.tm_yday
+
+ // + intervening leap days
+ + ((local_year >> 2) - (gmt_year >> 2)) - (local_year / 100 - gmt_year / 100) +
+ ((local_year / 100 >> 2) - (gmt_year / 100 >> 2))
+
+ // + difference in years * 365 */
+ + (long int)(local_year - gmt_year) * 365);
+
+ long int hours = (24 * days) + (localtm.tm_hour - gmtm.tm_hour);
+ long int mins = (60 * hours) + (localtm.tm_min - gmtm.tm_min);
+ long int secs = (60 * mins) + (localtm.tm_sec - gmtm.tm_sec);
+
+ return secs;
+ }
+ };
+
+ auto offset_seconds = helper::calculate_gmt_offset(tm);
+#else
+ auto offset_seconds = tm.tm_gmtoff;
+#endif
+
+ return static_cast<int>(offset_seconds / 60);
+#endif
+}
+
+// Return current thread id as size_t
+// It exists because the std::this_thread::get_id() is much slower(especially under VS 2013)
+inline size_t _thread_id()
+{
+#ifdef _WIN32
+ return static_cast<size_t>(::GetCurrentThreadId());
+#elif __linux__
+#if defined(__ANDROID__) && defined(__ANDROID_API__) && (__ANDROID_API__ < 21)
+#define SYS_gettid __NR_gettid
+#endif
+ return static_cast<size_t>(syscall(SYS_gettid));
+#elif __FreeBSD__
+ long tid;
+ thr_self(&tid);
+ return static_cast<size_t>(tid);
+#elif __APPLE__
+ uint64_t tid;
+ pthread_threadid_np(nullptr, &tid);
+ return static_cast<size_t>(tid);
+#else // Default to standard C++11 (other Unix)
+ return static_cast<size_t>(std::hash<std::thread::id>()(std::this_thread::get_id()));
+#endif
+}
+
+// Return current thread id as size_t (from thread local storage)
+inline size_t thread_id()
+{
+#if defined(SPDLOG_DISABLE_TID_CACHING) || (defined(_MSC_VER) && (_MSC_VER < 1900)) || defined(__cplusplus_winrt) || \
+ (defined(__clang__) && !__has_feature(cxx_thread_local))
+ return _thread_id();
+#else // cache thread id in tls
+ static thread_local const size_t tid = _thread_id();
+ return tid;
+#endif
+}
+
+// This is avoid msvc issue in sleep_for that happens if the clock changes.
+// See https://github.com/gabime/spdlog/issues/609
+inline void sleep_for_millis(int milliseconds)
+{
+#if defined(_WIN32)
+ ::Sleep(milliseconds);
+#else
+ std::this_thread::sleep_for(std::chrono::milliseconds(milliseconds));
+#endif
+}
+
+// wchar support for windows file names (SPDLOG_WCHAR_FILENAMES must be defined)
+#if defined(_WIN32) && defined(SPDLOG_WCHAR_FILENAMES)
+#define SPDLOG_FILENAME_T(s) L##s
+inline std::string filename_to_str(const filename_t &filename)
+{
+ std::wstring_convert<std::codecvt_utf8<wchar_t>, wchar_t> c;
+ return c.to_bytes(filename);
+}
+#else
+#define SPDLOG_FILENAME_T(s) s
+inline std::string filename_to_str(const filename_t &filename)
+{
+ return filename;
+}
+#endif
+
+inline int pid()
+{
+
+#ifdef _WIN32
+ return static_cast<int>(::GetCurrentProcessId());
+#else
+ return static_cast<int>(::getpid());
+#endif
+}
+
+// Determine if the terminal supports colors
+// Source: https://github.com/agauniyal/rang/
+inline bool is_color_terminal()
+{
+#ifdef _WIN32
+ return true;
+#else
+ static constexpr const char *Terms[] = {
+ "ansi", "color", "console", "cygwin", "gnome", "konsole", "kterm", "linux", "msys", "putty", "rxvt", "screen", "vt100", "xterm"};
+
+ const char *env_p = std::getenv("TERM");
+ if (env_p == nullptr)
+ {
+ return false;
+ }
+
+ static const bool result =
+ std::any_of(std::begin(Terms), std::end(Terms), [&](const char *term) { return std::strstr(env_p, term) != nullptr; });
+ return result;
+#endif
+}
+
+// Detrmine if the terminal attached
+// Source: https://github.com/agauniyal/rang/
+inline bool in_terminal(FILE *file)
+{
+
+#ifdef _WIN32
+ return _isatty(_fileno(file)) != 0;
+#else
+ return isatty(fileno(file)) != 0;
+#endif
+}
+} // namespace os
+} // namespace details
+} // namespace spdlog
diff --git a/lib/spdlog/details/pattern_formatter_impl.h b/lib/spdlog/details/pattern_formatter_impl.h
new file mode 100644
index 0000000..e3d7087
--- /dev/null
+++ b/lib/spdlog/details/pattern_formatter_impl.h
@@ -0,0 +1,707 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+#include "../details/log_msg.h"
+#include "../details/os.h"
+#include "../fmt/fmt.h"
+#include "../formatter.h"
+
+#include <array>
+#include <chrono>
+#include <ctime>
+#include <memory>
+#include <mutex>
+#include <string>
+#include <thread>
+#include <utility>
+#include <vector>
+
+namespace spdlog {
+namespace details {
+class flag_formatter
+{
+public:
+ virtual ~flag_formatter() = default;
+ virtual void format(details::log_msg &msg, const std::tm &tm_time) = 0;
+};
+
+///////////////////////////////////////////////////////////////////////
+// name & level pattern appenders
+///////////////////////////////////////////////////////////////////////
+class name_formatter : public flag_formatter
+{
+ void format(details::log_msg &msg, const std::tm &) override
+ {
+ msg.formatted << *msg.logger_name;
+ }
+};
+
+// log level appender
+class level_formatter : public flag_formatter
+{
+ void format(details::log_msg &msg, const std::tm &) override
+ {
+ msg.formatted << level::to_str(msg.level);
+ }
+};
+
+// short log level appender
+class short_level_formatter : public flag_formatter
+{
+ void format(details::log_msg &msg, const std::tm &) override
+ {
+ msg.formatted << level::to_short_str(msg.level);
+ }
+};
+
+///////////////////////////////////////////////////////////////////////
+// Date time pattern appenders
+///////////////////////////////////////////////////////////////////////
+
+static const char *ampm(const tm &t)
+{
+ return t.tm_hour >= 12 ? "PM" : "AM";
+}
+
+static int to12h(const tm &t)
+{
+ return t.tm_hour > 12 ? t.tm_hour - 12 : t.tm_hour;
+}
+
+// Abbreviated weekday name
+static const std::string days[]{"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
+class a_formatter : public flag_formatter
+{
+ void format(details::log_msg &msg, const std::tm &tm_time) override
+ {
+ msg.formatted << days[tm_time.tm_wday];
+ }
+};
+
+// Full weekday name
+static const std::string full_days[]{"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"};
+class A_formatter : public flag_formatter
+{
+ void format(details::log_msg &msg, const std::tm &tm_time) override
+ {
+ msg.formatted << full_days[tm_time.tm_wday];
+ }
+};
+
+// Abbreviated month
+static const std::string months[]{"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sept", "Oct", "Nov", "Dec"};
+class b_formatter : public flag_formatter
+{
+ void format(details::log_msg &msg, const std::tm &tm_time) override
+ {
+ msg.formatted << months[tm_time.tm_mon];
+ }
+};
+
+// Full month name
+static const std::string full_months[]{
+ "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"};
+class B_formatter : public flag_formatter
+{
+ void format(details::log_msg &msg, const std::tm &tm_time) override
+ {
+ msg.formatted << full_months[tm_time.tm_mon];
+ }
+};
+
+// write 2 ints separated by sep with padding of 2
+static fmt::MemoryWriter &pad_n_join(fmt::MemoryWriter &w, int v1, int v2, char sep)
+{
+ w << fmt::pad(v1, 2, '0') << sep << fmt::pad(v2, 2, '0');
+ return w;
+}
+
+// write 3 ints separated by sep with padding of 2
+static fmt::MemoryWriter &pad_n_join(fmt::MemoryWriter &w, int v1, int v2, int v3, char sep)
+{
+ w << fmt::pad(v1, 2, '0') << sep << fmt::pad(v2, 2, '0') << sep << fmt::pad(v3, 2, '0');
+ return w;
+}
+
+// Date and time representation (Thu Aug 23 15:35:46 2014)
+class c_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(details::log_msg &msg, const std::tm &tm_time) override
+ {
+ msg.formatted << days[tm_time.tm_wday] << ' ' << months[tm_time.tm_mon] << ' ' << tm_time.tm_mday << ' ';
+ pad_n_join(msg.formatted, tm_time.tm_hour, tm_time.tm_min, tm_time.tm_sec, ':') << ' ' << tm_time.tm_year + 1900;
+ }
+};
+
+// year - 2 digit
+class C_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(details::log_msg &msg, const std::tm &tm_time) override
+ {
+ msg.formatted << fmt::pad(tm_time.tm_year % 100, 2, '0');
+ }
+};
+
+// Short MM/DD/YY date, equivalent to %m/%d/%y 08/23/01
+class D_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(details::log_msg &msg, const std::tm &tm_time) override
+ {
+ pad_n_join(msg.formatted, tm_time.tm_mon + 1, tm_time.tm_mday, tm_time.tm_year % 100, '/');
+ }
+};
+
+// year - 4 digit
+class Y_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(details::log_msg &msg, const std::tm &tm_time) override
+ {
+ msg.formatted << tm_time.tm_year + 1900;
+ }
+};
+
+// month 1-12
+class m_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(details::log_msg &msg, const std::tm &tm_time) override
+ {
+ msg.formatted << fmt::pad(tm_time.tm_mon + 1, 2, '0');
+ }
+};
+
+// day of month 1-31
+class d_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(details::log_msg &msg, const std::tm &tm_time) override
+ {
+ msg.formatted << fmt::pad(tm_time.tm_mday, 2, '0');
+ }
+};
+
+// hours in 24 format 0-23
+class H_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(details::log_msg &msg, const std::tm &tm_time) override
+ {
+ msg.formatted << fmt::pad(tm_time.tm_hour, 2, '0');
+ }
+};
+
+// hours in 12 format 1-12
+class I_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(details::log_msg &msg, const std::tm &tm_time) override
+ {
+ msg.formatted << fmt::pad(to12h(tm_time), 2, '0');
+ }
+};
+
+// minutes 0-59
+class M_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(details::log_msg &msg, const std::tm &tm_time) override
+ {
+ msg.formatted << fmt::pad(tm_time.tm_min, 2, '0');
+ }
+};
+
+// seconds 0-59
+class S_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(details::log_msg &msg, const std::tm &tm_time) override
+ {
+ msg.formatted << fmt::pad(tm_time.tm_sec, 2, '0');
+ }
+};
+
+// milliseconds
+class e_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(details::log_msg &msg, const std::tm &) override
+ {
+ auto duration = msg.time.time_since_epoch();
+ auto millis = std::chrono::duration_cast<std::chrono::milliseconds>(duration).count() % 1000;
+ msg.formatted << fmt::pad(static_cast<int>(millis), 3, '0');
+ }
+};
+
+// microseconds
+class f_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(details::log_msg &msg, const std::tm &) override
+ {
+ auto duration = msg.time.time_since_epoch();
+ auto micros = std::chrono::duration_cast<std::chrono::microseconds>(duration).count() % 1000000;
+ msg.formatted << fmt::pad(static_cast<int>(micros), 6, '0');
+ }
+};
+
+// nanoseconds
+class F_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(details::log_msg &msg, const std::tm &) override
+ {
+ auto duration = msg.time.time_since_epoch();
+ auto ns = std::chrono::duration_cast<std::chrono::nanoseconds>(duration).count() % 1000000000;
+ msg.formatted << fmt::pad(static_cast<int>(ns), 9, '0');
+ }
+};
+
+class E_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(details::log_msg &msg, const std::tm &) override
+ {
+ auto duration = msg.time.time_since_epoch();
+ auto seconds = std::chrono::duration_cast<std::chrono::seconds>(duration).count();
+ msg.formatted << seconds;
+ }
+};
+
+// AM/PM
+class p_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(details::log_msg &msg, const std::tm &tm_time) override
+ {
+ msg.formatted << ampm(tm_time);
+ }
+};
+
+// 12 hour clock 02:55:02 pm
+class r_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(details::log_msg &msg, const std::tm &tm_time) override
+ {
+ pad_n_join(msg.formatted, to12h(tm_time), tm_time.tm_min, tm_time.tm_sec, ':') << ' ' << ampm(tm_time);
+ }
+};
+
+// 24-hour HH:MM time, equivalent to %H:%M
+class R_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(details::log_msg &msg, const std::tm &tm_time) override
+ {
+ pad_n_join(msg.formatted, tm_time.tm_hour, tm_time.tm_min, ':');
+ }
+};
+
+// ISO 8601 time format (HH:MM:SS), equivalent to %H:%M:%S
+class T_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(details::log_msg &msg, const std::tm &tm_time) override
+ {
+ pad_n_join(msg.formatted, tm_time.tm_hour, tm_time.tm_min, tm_time.tm_sec, ':');
+ }
+};
+
+// ISO 8601 offset from UTC in timezone (+-HH:MM)
+class z_formatter SPDLOG_FINAL : public flag_formatter
+{
+public:
+ const std::chrono::seconds cache_refresh = std::chrono::seconds(5);
+
+ z_formatter() = default;
+ z_formatter(const z_formatter &) = delete;
+ z_formatter &operator=(const z_formatter &) = delete;
+
+ void format(details::log_msg &msg, const std::tm &tm_time) override
+ {
+#ifdef _WIN32
+ int total_minutes = get_cached_offset(msg, tm_time);
+#else
+ // No need to chache under gcc,
+ // it is very fast (already stored in tm.tm_gmtoff)
+ int total_minutes = os::utc_minutes_offset(tm_time);
+#endif
+ bool is_negative = total_minutes < 0;
+ char sign;
+ if (is_negative)
+ {
+ total_minutes = -total_minutes;
+ sign = '-';
+ }
+ else
+ {
+ sign = '+';
+ }
+
+ int h = total_minutes / 60;
+ int m = total_minutes % 60;
+ msg.formatted << sign;
+ pad_n_join(msg.formatted, h, m, ':');
+ }
+
+private:
+ log_clock::time_point _last_update{std::chrono::seconds(0)};
+ int _offset_minutes{0};
+ std::mutex _mutex;
+
+ int get_cached_offset(const log_msg &msg, const std::tm &tm_time)
+ {
+ std::lock_guard<std::mutex> l(_mutex);
+ if (msg.time - _last_update >= cache_refresh)
+ {
+ _offset_minutes = os::utc_minutes_offset(tm_time);
+ _last_update = msg.time;
+ }
+ return _offset_minutes;
+ }
+};
+
+// Thread id
+class t_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(details::log_msg &msg, const std::tm &) override
+ {
+ msg.formatted << msg.thread_id;
+ }
+};
+
+// Current pid
+class pid_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(details::log_msg &msg, const std::tm &) override
+ {
+ msg.formatted << details::os::pid();
+ }
+};
+
+// message counter formatter
+class i_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(details::log_msg &msg, const std::tm &) override
+ {
+ msg.formatted << fmt::pad(msg.msg_id, 6, '0');
+ }
+};
+
+class v_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(details::log_msg &msg, const std::tm &) override
+ {
+ msg.formatted << fmt::StringRef(msg.raw.data(), msg.raw.size());
+ }
+};
+
+class ch_formatter SPDLOG_FINAL : public flag_formatter
+{
+public:
+ explicit ch_formatter(char ch)
+ : _ch(ch)
+ {
+ }
+ void format(details::log_msg &msg, const std::tm &) override
+ {
+ msg.formatted << _ch;
+ }
+
+private:
+ char _ch;
+};
+
+// aggregate user chars to display as is
+class aggregate_formatter SPDLOG_FINAL : public flag_formatter
+{
+public:
+ aggregate_formatter() = default;
+
+ void add_ch(char ch)
+ {
+ _str += ch;
+ }
+ void format(details::log_msg &msg, const std::tm &) override
+ {
+ msg.formatted << _str;
+ }
+
+private:
+ std::string _str;
+};
+
+// mark the color range. expect it to be in the form of "%^colored text%$"
+class color_start_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(details::log_msg &msg, const std::tm &) override
+ {
+ msg.color_range_start = msg.formatted.size();
+ }
+};
+class color_stop_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(details::log_msg &msg, const std::tm &) override
+ {
+ msg.color_range_end = msg.formatted.size();
+ }
+};
+
+// Full info formatter
+// pattern: [%Y-%m-%d %H:%M:%S.%e] [%n] [%l] %v
+class full_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(details::log_msg &msg, const std::tm &tm_time) override
+ {
+#ifndef SPDLOG_NO_DATETIME
+ auto duration = msg.time.time_since_epoch();
+ auto millis = std::chrono::duration_cast<std::chrono::milliseconds>(duration).count() % 1000;
+
+ /* Slower version(while still very fast - about 3.2 million lines/sec under 10 threads),
+ msg.formatted.write("[{:d}-{:02d}-{:02d} {:02d}:{:02d}:{:02d}.{:03d}] [{}] [{}] {} ",
+ tm_time.tm_year + 1900,
+ tm_time.tm_mon + 1,
+ tm_time.tm_mday,
+ tm_time.tm_hour,
+ tm_time.tm_min,
+ tm_time.tm_sec,
+ static_cast<int>(millis),
+ msg.logger_name,
+ level::to_str(msg.level),
+ msg.raw.str());*/
+
+ // Faster (albeit uglier) way to format the line (5.6 million lines/sec under 10 threads)
+ msg.formatted << '[' << static_cast<unsigned int>(tm_time.tm_year + 1900) << '-'
+ << fmt::pad(static_cast<unsigned int>(tm_time.tm_mon + 1), 2, '0') << '-'
+ << fmt::pad(static_cast<unsigned int>(tm_time.tm_mday), 2, '0') << ' '
+ << fmt::pad(static_cast<unsigned int>(tm_time.tm_hour), 2, '0') << ':'
+ << fmt::pad(static_cast<unsigned int>(tm_time.tm_min), 2, '0') << ':'
+ << fmt::pad(static_cast<unsigned int>(tm_time.tm_sec), 2, '0') << '.'
+ << fmt::pad(static_cast<unsigned int>(millis), 3, '0') << "] ";
+
+ // no datetime needed
+#else
+ (void)tm_time;
+#endif
+
+#ifndef SPDLOG_NO_NAME
+ msg.formatted << '[' << *msg.logger_name << "] ";
+#endif
+
+ msg.formatted << '[';
+ // wrap the level name with color
+ msg.color_range_start = msg.formatted.size();
+ msg.formatted << level::to_str(msg.level);
+ msg.color_range_end = msg.formatted.size();
+ msg.formatted << "] " << fmt::StringRef(msg.raw.data(), msg.raw.size());
+ }
+};
+
+} // namespace details
+} // namespace spdlog
+///////////////////////////////////////////////////////////////////////////////
+// pattern_formatter inline impl
+///////////////////////////////////////////////////////////////////////////////
+inline spdlog::pattern_formatter::pattern_formatter(const std::string &pattern, pattern_time_type pattern_time, std::string eol)
+ : _eol(std::move(eol))
+ , _pattern_time(pattern_time)
+{
+ compile_pattern(pattern);
+}
+
+inline void spdlog::pattern_formatter::compile_pattern(const std::string &pattern)
+{
+ auto end = pattern.end();
+ std::unique_ptr<details::aggregate_formatter> user_chars;
+ for (auto it = pattern.begin(); it != end; ++it)
+ {
+ if (*it == '%')
+ {
+ if (user_chars) // append user chars found so far
+ {
+ _formatters.push_back(std::move(user_chars));
+ }
+ // if(
+ if (++it != end)
+ {
+ handle_flag(*it);
+ }
+ else
+ {
+ break;
+ }
+ }
+ else // chars not following the % sign should be displayed as is
+ {
+ if (!user_chars)
+ {
+ user_chars = std::unique_ptr<details::aggregate_formatter>(new details::aggregate_formatter());
+ }
+ user_chars->add_ch(*it);
+ }
+ }
+ if (user_chars) // append raw chars found so far
+ {
+ _formatters.push_back(std::move(user_chars));
+ }
+}
+inline void spdlog::pattern_formatter::handle_flag(char flag)
+{
+ switch (flag)
+ {
+ // logger name
+ case 'n':
+ _formatters.emplace_back(new details::name_formatter());
+ break;
+
+ case 'l':
+ _formatters.emplace_back(new details::level_formatter());
+ break;
+
+ case 'L':
+ _formatters.emplace_back(new details::short_level_formatter());
+ break;
+
+ case ('t'):
+ _formatters.emplace_back(new details::t_formatter());
+ break;
+
+ case ('v'):
+ _formatters.emplace_back(new details::v_formatter());
+ break;
+
+ case ('a'):
+ _formatters.emplace_back(new details::a_formatter());
+ break;
+
+ case ('A'):
+ _formatters.emplace_back(new details::A_formatter());
+ break;
+
+ case ('b'):
+ case ('h'):
+ _formatters.emplace_back(new details::b_formatter());
+ break;
+
+ case ('B'):
+ _formatters.emplace_back(new details::B_formatter());
+ break;
+ case ('c'):
+ _formatters.emplace_back(new details::c_formatter());
+ break;
+
+ case ('C'):
+ _formatters.emplace_back(new details::C_formatter());
+ break;
+
+ case ('Y'):
+ _formatters.emplace_back(new details::Y_formatter());
+ break;
+
+ case ('D'):
+ case ('x'):
+
+ _formatters.emplace_back(new details::D_formatter());
+ break;
+
+ case ('m'):
+ _formatters.emplace_back(new details::m_formatter());
+ break;
+
+ case ('d'):
+ _formatters.emplace_back(new details::d_formatter());
+ break;
+
+ case ('H'):
+ _formatters.emplace_back(new details::H_formatter());
+ break;
+
+ case ('I'):
+ _formatters.emplace_back(new details::I_formatter());
+ break;
+
+ case ('M'):
+ _formatters.emplace_back(new details::M_formatter());
+ break;
+
+ case ('S'):
+ _formatters.emplace_back(new details::S_formatter());
+ break;
+
+ case ('e'):
+ _formatters.emplace_back(new details::e_formatter());
+ break;
+
+ case ('f'):
+ _formatters.emplace_back(new details::f_formatter());
+ break;
+ case ('F'):
+ _formatters.emplace_back(new details::F_formatter());
+ break;
+
+ case ('E'):
+ _formatters.emplace_back(new details::E_formatter());
+ break;
+
+ case ('p'):
+ _formatters.emplace_back(new details::p_formatter());
+ break;
+
+ case ('r'):
+ _formatters.emplace_back(new details::r_formatter());
+ break;
+
+ case ('R'):
+ _formatters.emplace_back(new details::R_formatter());
+ break;
+
+ case ('T'):
+ case ('X'):
+ _formatters.emplace_back(new details::T_formatter());
+ break;
+
+ case ('z'):
+ _formatters.emplace_back(new details::z_formatter());
+ break;
+
+ case ('+'):
+ _formatters.emplace_back(new details::full_formatter());
+ break;
+
+ case ('P'):
+ _formatters.emplace_back(new details::pid_formatter());
+ break;
+
+ case ('i'):
+ _formatters.emplace_back(new details::i_formatter());
+ break;
+
+ case ('^'):
+ _formatters.emplace_back(new details::color_start_formatter());
+ break;
+
+ case ('$'):
+ _formatters.emplace_back(new details::color_stop_formatter());
+ break;
+
+ default: // Unknown flag appears as is
+ _formatters.emplace_back(new details::ch_formatter('%'));
+ _formatters.emplace_back(new details::ch_formatter(flag));
+ break;
+ }
+}
+
+inline std::tm spdlog::pattern_formatter::get_time(details::log_msg &msg)
+{
+ if (_pattern_time == pattern_time_type::local)
+ {
+ return details::os::localtime(log_clock::to_time_t(msg.time));
+ }
+ return details::os::gmtime(log_clock::to_time_t(msg.time));
+}
+
+inline void spdlog::pattern_formatter::format(details::log_msg &msg)
+{
+
+#ifndef SPDLOG_NO_DATETIME
+ auto tm_time = get_time(msg);
+#else
+ std::tm tm_time;
+#endif
+ for (auto &f : _formatters)
+ {
+ f->format(msg, tm_time);
+ }
+ // write eol
+ msg.formatted << _eol;
+}
diff --git a/lib/spdlog/details/registry.h b/lib/spdlog/details/registry.h
new file mode 100644
index 0000000..614220d
--- /dev/null
+++ b/lib/spdlog/details/registry.h
@@ -0,0 +1,263 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+// Loggers registy of unique name->logger pointer
+// An attempt to create a logger with an already existing name will be ignored
+// If user requests a non existing logger, nullptr will be returned
+// This class is thread safe
+
+#include "../async_logger.h"
+#include "../common.h"
+#include "../details/null_mutex.h"
+#include "../logger.h"
+
+#include <chrono>
+#include <functional>
+#include <memory>
+#include <mutex>
+#include <string>
+#include <unordered_map>
+
+namespace spdlog {
+namespace details {
+template<class Mutex>
+class registry_t
+{
+public:
+ registry_t<Mutex>(const registry_t<Mutex> &) = delete;
+ registry_t<Mutex> &operator=(const registry_t<Mutex> &) = delete;
+
+ void register_logger(std::shared_ptr<logger> logger)
+ {
+ std::lock_guard<Mutex> lock(_mutex);
+ auto logger_name = logger->name();
+ throw_if_exists(logger_name);
+ _loggers[logger_name] = logger;
+ }
+
+ std::shared_ptr<logger> get(const std::string &logger_name)
+ {
+ std::lock_guard<Mutex> lock(_mutex);
+ auto found = _loggers.find(logger_name);
+ return found == _loggers.end() ? nullptr : found->second;
+ }
+
+ template<class It>
+ std::shared_ptr<logger> create(const std::string &logger_name, const It &sinks_begin, const It &sinks_end)
+ {
+ std::lock_guard<Mutex> lock(_mutex);
+ throw_if_exists(logger_name);
+ std::shared_ptr<logger> new_logger;
+ if (_async_mode)
+ {
+ new_logger = std::make_shared<async_logger>(logger_name, sinks_begin, sinks_end, _async_q_size, _overflow_policy,
+ _worker_warmup_cb, _flush_interval_ms, _worker_teardown_cb);
+ }
+ else
+ {
+ new_logger = std::make_shared<logger>(logger_name, sinks_begin, sinks_end);
+ }
+
+ if (_formatter)
+ {
+ new_logger->set_formatter(_formatter);
+ }
+
+ if (_err_handler)
+ {
+ new_logger->set_error_handler(_err_handler);
+ }
+
+ new_logger->set_level(_level);
+ new_logger->flush_on(_flush_level);
+
+ // Add to registry
+ _loggers[logger_name] = new_logger;
+ return new_logger;
+ }
+
+ template<class It>
+ std::shared_ptr<async_logger> create_async(const std::string &logger_name, size_t queue_size,
+ const async_overflow_policy overflow_policy, const std::function<void()> &worker_warmup_cb,
+ const std::chrono::milliseconds &flush_interval_ms, const std::function<void()> &worker_teardown_cb, const It &sinks_begin,
+ const It &sinks_end)
+ {
+ std::lock_guard<Mutex> lock(_mutex);
+ throw_if_exists(logger_name);
+ auto new_logger = std::make_shared<async_logger>(
+ logger_name, sinks_begin, sinks_end, queue_size, overflow_policy, worker_warmup_cb, flush_interval_ms, worker_teardown_cb);
+
+ if (_formatter)
+ {
+ new_logger->set_formatter(_formatter);
+ }
+
+ if (_err_handler)
+ {
+ new_logger->set_error_handler(_err_handler);
+ }
+
+ new_logger->set_level(_level);
+ new_logger->flush_on(_flush_level);
+
+ // Add to registry
+ _loggers[logger_name] = new_logger;
+ return new_logger;
+ }
+
+ void apply_all(std::function<void(std::shared_ptr<logger>)> fun)
+ {
+ std::lock_guard<Mutex> lock(_mutex);
+ for (auto &l : _loggers)
+ {
+ fun(l.second);
+ }
+ }
+
+ void drop(const std::string &logger_name)
+ {
+ std::lock_guard<Mutex> lock(_mutex);
+ _loggers.erase(logger_name);
+ }
+
+ void drop_all()
+ {
+ std::lock_guard<Mutex> lock(_mutex);
+ _loggers.clear();
+ }
+
+ std::shared_ptr<logger> create(const std::string &logger_name, sinks_init_list sinks)
+ {
+ return create(logger_name, sinks.begin(), sinks.end());
+ }
+
+ std::shared_ptr<logger> create(const std::string &logger_name, sink_ptr sink)
+ {
+ return create(logger_name, {sink});
+ }
+
+ std::shared_ptr<async_logger> create_async(const std::string &logger_name, size_t queue_size,
+ const async_overflow_policy overflow_policy, const std::function<void()> &worker_warmup_cb,
+ const std::chrono::milliseconds &flush_interval_ms, const std::function<void()> &worker_teardown_cb, sinks_init_list sinks)
+ {
+ return create_async(
+ logger_name, queue_size, overflow_policy, worker_warmup_cb, flush_interval_ms, worker_teardown_cb, sinks.begin(), sinks.end());
+ }
+
+ std::shared_ptr<async_logger> create_async(const std::string &logger_name, size_t queue_size,
+ const async_overflow_policy overflow_policy, const std::function<void()> &worker_warmup_cb,
+ const std::chrono::milliseconds &flush_interval_ms, const std::function<void()> &worker_teardown_cb, sink_ptr sink)
+ {
+ return create_async(logger_name, queue_size, overflow_policy, worker_warmup_cb, flush_interval_ms, worker_teardown_cb, {sink});
+ }
+
+ void formatter(formatter_ptr f)
+ {
+ std::lock_guard<Mutex> lock(_mutex);
+ _formatter = f;
+ for (auto &l : _loggers)
+ {
+ l.second->set_formatter(_formatter);
+ }
+ }
+
+ void set_pattern(const std::string &pattern)
+ {
+ std::lock_guard<Mutex> lock(_mutex);
+ _formatter = std::make_shared<pattern_formatter>(pattern);
+ for (auto &l : _loggers)
+ {
+ l.second->set_formatter(_formatter);
+ }
+ }
+
+ void set_level(level::level_enum log_level)
+ {
+ std::lock_guard<Mutex> lock(_mutex);
+ for (auto &l : _loggers)
+ {
+ l.second->set_level(log_level);
+ }
+ _level = log_level;
+ }
+
+ void flush_on(level::level_enum log_level)
+ {
+ std::lock_guard<Mutex> lock(_mutex);
+ for (auto &l : _loggers)
+ {
+ l.second->flush_on(log_level);
+ }
+ _flush_level = log_level;
+ }
+
+ void set_error_handler(log_err_handler handler)
+ {
+ for (auto &l : _loggers)
+ {
+ l.second->set_error_handler(handler);
+ }
+ _err_handler = handler;
+ }
+
+ void set_async_mode(size_t q_size, const async_overflow_policy overflow_policy, const std::function<void()> &worker_warmup_cb,
+ const std::chrono::milliseconds &flush_interval_ms, const std::function<void()> &worker_teardown_cb)
+ {
+ std::lock_guard<Mutex> lock(_mutex);
+ _async_mode = true;
+ _async_q_size = q_size;
+ _overflow_policy = overflow_policy;
+ _worker_warmup_cb = worker_warmup_cb;
+ _flush_interval_ms = flush_interval_ms;
+ _worker_teardown_cb = worker_teardown_cb;
+ }
+
+ void set_sync_mode()
+ {
+ std::lock_guard<Mutex> lock(_mutex);
+ _async_mode = false;
+ }
+
+ static registry_t<Mutex> &instance()
+ {
+ static registry_t<Mutex> s_instance;
+ return s_instance;
+ }
+
+private:
+ registry_t<Mutex>() = default;
+
+ void throw_if_exists(const std::string &logger_name)
+ {
+ if (_loggers.find(logger_name) != _loggers.end())
+ {
+ throw spdlog_ex("logger with name '" + logger_name + "' already exists");
+ }
+ }
+
+ Mutex _mutex;
+ std::unordered_map<std::string, std::shared_ptr<logger>> _loggers;
+ formatter_ptr _formatter;
+ level::level_enum _level = level::info;
+ level::level_enum _flush_level = level::off;
+ log_err_handler _err_handler;
+ bool _async_mode = false;
+ size_t _async_q_size = 0;
+ async_overflow_policy _overflow_policy = async_overflow_policy::block_retry;
+ std::function<void()> _worker_warmup_cb;
+ std::chrono::milliseconds _flush_interval_ms{std::chrono::milliseconds::zero()};
+ std::function<void()> _worker_teardown_cb;
+};
+
+#ifdef SPDLOG_NO_REGISTRY_MUTEX
+using registry = registry_t<spdlog::details::null_mutex>;
+#else
+using registry = registry_t<std::mutex>;
+#endif
+
+} // namespace details
+} // namespace spdlog
diff --git a/lib/spdlog/details/spdlog_impl.h b/lib/spdlog/details/spdlog_impl.h
new file mode 100644
index 0000000..4c36383
--- /dev/null
+++ b/lib/spdlog/details/spdlog_impl.h
@@ -0,0 +1,278 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+//
+// Global registry functions
+//
+#include "../details/registry.h"
+#include "../sinks/file_sinks.h"
+#include "../sinks/stdout_sinks.h"
+#include "../spdlog.h"
+#ifdef SPDLOG_ENABLE_SYSLOG
+#include "../sinks/syslog_sink.h"
+#endif
+
+#if defined _WIN32 && !defined(__cplusplus_winrt)
+#include "../sinks/wincolor_sink.h"
+#else
+#include "../sinks/ansicolor_sink.h"
+#endif
+
+#ifdef __ANDROID__
+#include "../sinks/android_sink.h"
+#endif
+
+#include <chrono>
+#include <functional>
+#include <memory>
+#include <string>
+
+inline void spdlog::register_logger(std::shared_ptr<logger> logger)
+{
+ return details::registry::instance().register_logger(std::move(logger));
+}
+
+inline std::shared_ptr<spdlog::logger> spdlog::get(const std::string &name)
+{
+ return details::registry::instance().get(name);
+}
+
+inline void spdlog::drop(const std::string &name)
+{
+ details::registry::instance().drop(name);
+}
+
+// Create multi/single threaded simple file logger
+inline std::shared_ptr<spdlog::logger> spdlog::basic_logger_mt(const std::string &logger_name, const filename_t &filename, bool truncate)
+{
+ return create<spdlog::sinks::simple_file_sink_mt>(logger_name, filename, truncate);
+}
+
+inline std::shared_ptr<spdlog::logger> spdlog::basic_logger_st(const std::string &logger_name, const filename_t &filename, bool truncate)
+{
+ return create<spdlog::sinks::simple_file_sink_st>(logger_name, filename, truncate);
+}
+
+// Create multi/single threaded rotating file logger
+inline std::shared_ptr<spdlog::logger> spdlog::rotating_logger_mt(
+ const std::string &logger_name, const filename_t &filename, size_t max_file_size, size_t max_files)
+{
+ return create<spdlog::sinks::rotating_file_sink_mt>(logger_name, filename, max_file_size, max_files);
+}
+
+inline std::shared_ptr<spdlog::logger> spdlog::rotating_logger_st(
+ const std::string &logger_name, const filename_t &filename, size_t max_file_size, size_t max_files)
+{
+ return create<spdlog::sinks::rotating_file_sink_st>(logger_name, filename, max_file_size, max_files);
+}
+
+// Create file logger which creates new file at midnight):
+inline std::shared_ptr<spdlog::logger> spdlog::daily_logger_mt(
+ const std::string &logger_name, const filename_t &filename, int hour, int minute)
+{
+ return create<spdlog::sinks::daily_file_sink_mt>(logger_name, filename, hour, minute);
+}
+
+inline std::shared_ptr<spdlog::logger> spdlog::daily_logger_st(
+ const std::string &logger_name, const filename_t &filename, int hour, int minute)
+{
+ return create<spdlog::sinks::daily_file_sink_st>(logger_name, filename, hour, minute);
+}
+
+//
+// stdout/stderr loggers
+//
+inline std::shared_ptr<spdlog::logger> spdlog::stdout_logger_mt(const std::string &logger_name)
+{
+ return spdlog::details::registry::instance().create(logger_name, spdlog::sinks::stdout_sink_mt::instance());
+}
+
+inline std::shared_ptr<spdlog::logger> spdlog::stdout_logger_st(const std::string &logger_name)
+{
+ return spdlog::details::registry::instance().create(logger_name, spdlog::sinks::stdout_sink_st::instance());
+}
+
+inline std::shared_ptr<spdlog::logger> spdlog::stderr_logger_mt(const std::string &logger_name)
+{
+ return spdlog::details::registry::instance().create(logger_name, spdlog::sinks::stderr_sink_mt::instance());
+}
+
+inline std::shared_ptr<spdlog::logger> spdlog::stderr_logger_st(const std::string &logger_name)
+{
+ return spdlog::details::registry::instance().create(logger_name, spdlog::sinks::stderr_sink_st::instance());
+}
+
+//
+// stdout/stderr color loggers
+//
+#if defined _WIN32 && !defined(__cplusplus_winrt)
+
+inline std::shared_ptr<spdlog::logger> spdlog::stdout_color_mt(const std::string &logger_name)
+{
+ auto sink = std::make_shared<spdlog::sinks::wincolor_stdout_sink_mt>();
+ return spdlog::details::registry::instance().create(logger_name, sink);
+}
+
+inline std::shared_ptr<spdlog::logger> spdlog::stdout_color_st(const std::string &logger_name)
+{
+ auto sink = std::make_shared<spdlog::sinks::wincolor_stdout_sink_st>();
+ return spdlog::details::registry::instance().create(logger_name, sink);
+}
+
+inline std::shared_ptr<spdlog::logger> spdlog::stderr_color_mt(const std::string &logger_name)
+{
+ auto sink = std::make_shared<spdlog::sinks::wincolor_stderr_sink_mt>();
+ return spdlog::details::registry::instance().create(logger_name, sink);
+}
+
+inline std::shared_ptr<spdlog::logger> spdlog::stderr_color_st(const std::string &logger_name)
+{
+ auto sink = std::make_shared<spdlog::sinks::wincolor_stderr_sink_st>();
+ return spdlog::details::registry::instance().create(logger_name, sink);
+}
+
+#else // ansi terminal colors
+
+inline std::shared_ptr<spdlog::logger> spdlog::stdout_color_mt(const std::string &logger_name)
+{
+ auto sink = std::make_shared<spdlog::sinks::ansicolor_stdout_sink_mt>();
+ return spdlog::details::registry::instance().create(logger_name, sink);
+}
+
+inline std::shared_ptr<spdlog::logger> spdlog::stdout_color_st(const std::string &logger_name)
+{
+ auto sink = std::make_shared<spdlog::sinks::ansicolor_stdout_sink_st>();
+ return spdlog::details::registry::instance().create(logger_name, sink);
+}
+
+inline std::shared_ptr<spdlog::logger> spdlog::stderr_color_mt(const std::string &logger_name)
+{
+ auto sink = std::make_shared<spdlog::sinks::ansicolor_stderr_sink_mt>();
+ return spdlog::details::registry::instance().create(logger_name, sink);
+}
+
+inline std::shared_ptr<spdlog::logger> spdlog::stderr_color_st(const std::string &logger_name)
+{
+ auto sink = std::make_shared<spdlog::sinks::ansicolor_stderr_sink_st>();
+ return spdlog::details::registry::instance().create(logger_name, sink);
+}
+#endif
+
+#ifdef SPDLOG_ENABLE_SYSLOG
+// Create syslog logger
+inline std::shared_ptr<spdlog::logger> spdlog::syslog_logger(
+ const std::string &logger_name, const std::string &syslog_ident, int syslog_option, int syslog_facility)
+{
+ return create<spdlog::sinks::syslog_sink>(logger_name, syslog_ident, syslog_option, syslog_facility);
+}
+#endif
+
+#ifdef __ANDROID__
+inline std::shared_ptr<spdlog::logger> spdlog::android_logger(const std::string &logger_name, const std::string &tag)
+{
+ return create<spdlog::sinks::android_sink>(logger_name, tag);
+}
+#endif
+
+// Create and register a logger a single sink
+inline std::shared_ptr<spdlog::logger> spdlog::create(const std::string &logger_name, const spdlog::sink_ptr &sink)
+{
+ return details::registry::instance().create(logger_name, sink);
+}
+
+// Create logger with multiple sinks
+inline std::shared_ptr<spdlog::logger> spdlog::create(const std::string &logger_name, spdlog::sinks_init_list sinks)
+{
+ return details::registry::instance().create(logger_name, sinks);
+}
+
+template<typename Sink, typename... Args>
+inline std::shared_ptr<spdlog::logger> spdlog::create(const std::string &logger_name, Args... args)
+{
+ sink_ptr sink = std::make_shared<Sink>(args...);
+ return details::registry::instance().create(logger_name, {sink});
+}
+
+template<class It>
+inline std::shared_ptr<spdlog::logger> spdlog::create(const std::string &logger_name, const It &sinks_begin, const It &sinks_end)
+{
+ return details::registry::instance().create(logger_name, sinks_begin, sinks_end);
+}
+
+// Create and register an async logger with a single sink
+inline std::shared_ptr<spdlog::logger> spdlog::create_async(const std::string &logger_name, const sink_ptr &sink, size_t queue_size,
+ const async_overflow_policy overflow_policy, const std::function<void()> &worker_warmup_cb,
+ const std::chrono::milliseconds &flush_interval_ms, const std::function<void()> &worker_teardown_cb)
+{
+ return details::registry::instance().create_async(
+ logger_name, queue_size, overflow_policy, worker_warmup_cb, flush_interval_ms, worker_teardown_cb, sink);
+}
+
+// Create and register an async logger with multiple sinks
+inline std::shared_ptr<spdlog::logger> spdlog::create_async(const std::string &logger_name, sinks_init_list sinks, size_t queue_size,
+ const async_overflow_policy overflow_policy, const std::function<void()> &worker_warmup_cb,
+ const std::chrono::milliseconds &flush_interval_ms, const std::function<void()> &worker_teardown_cb)
+{
+ return details::registry::instance().create_async(
+ logger_name, queue_size, overflow_policy, worker_warmup_cb, flush_interval_ms, worker_teardown_cb, sinks);
+}
+
+template<class It>
+inline std::shared_ptr<spdlog::logger> spdlog::create_async(const std::string &logger_name, const It &sinks_begin, const It &sinks_end,
+ size_t queue_size, const async_overflow_policy overflow_policy, const std::function<void()> &worker_warmup_cb,
+ const std::chrono::milliseconds &flush_interval_ms, const std::function<void()> &worker_teardown_cb)
+{
+ return details::registry::instance().create_async(
+ logger_name, queue_size, overflow_policy, worker_warmup_cb, flush_interval_ms, worker_teardown_cb, sinks_begin, sinks_end);
+}
+
+inline void spdlog::set_formatter(spdlog::formatter_ptr f)
+{
+ details::registry::instance().formatter(std::move(f));
+}
+
+inline void spdlog::set_pattern(const std::string &format_string)
+{
+ return details::registry::instance().set_pattern(format_string);
+}
+
+inline void spdlog::set_level(level::level_enum log_level)
+{
+ return details::registry::instance().set_level(log_level);
+}
+
+inline void spdlog::flush_on(level::level_enum log_level)
+{
+ return details::registry::instance().flush_on(log_level);
+}
+
+inline void spdlog::set_error_handler(log_err_handler handler)
+{
+ return details::registry::instance().set_error_handler(std::move(handler));
+}
+
+inline void spdlog::set_async_mode(size_t queue_size, const async_overflow_policy overflow_policy,
+ const std::function<void()> &worker_warmup_cb, const std::chrono::milliseconds &flush_interval_ms,
+ const std::function<void()> &worker_teardown_cb)
+{
+ details::registry::instance().set_async_mode(queue_size, overflow_policy, worker_warmup_cb, flush_interval_ms, worker_teardown_cb);
+}
+
+inline void spdlog::set_sync_mode()
+{
+ details::registry::instance().set_sync_mode();
+}
+
+inline void spdlog::apply_all(std::function<void(std::shared_ptr<logger>)> fun)
+{
+ details::registry::instance().apply_all(std::move(fun));
+}
+
+inline void spdlog::drop_all()
+{
+ details::registry::instance().drop_all();
+}
diff --git a/lib/spdlog/fmt/bundled/LICENSE.rst b/lib/spdlog/fmt/bundled/LICENSE.rst
new file mode 100644
index 0000000..eb6be65
--- /dev/null
+++ b/lib/spdlog/fmt/bundled/LICENSE.rst
@@ -0,0 +1,23 @@
+Copyright (c) 2012 - 2016, Victor Zverovich
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/lib/spdlog/fmt/bundled/format.cc b/lib/spdlog/fmt/bundled/format.cc
new file mode 100644
index 0000000..2d236bc
--- /dev/null
+++ b/lib/spdlog/fmt/bundled/format.cc
@@ -0,0 +1,495 @@
+/*
+ Formatting library for C++
+
+ Copyright (c) 2012 - 2016, Victor Zverovich
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "format.h"
+
+#include <string.h>
+
+#include <cctype>
+#include <cerrno>
+#include <climits>
+#include <cmath>
+#include <cstdarg>
+#include <cstddef> // for std::ptrdiff_t
+
+#if defined(_WIN32) && defined(__MINGW32__)
+# include <cstring>
+#endif
+
+#if FMT_USE_WINDOWS_H
+# if !defined(FMT_HEADER_ONLY) && !defined(WIN32_LEAN_AND_MEAN)
+# define WIN32_LEAN_AND_MEAN
+# endif
+# if defined(NOMINMAX) || defined(FMT_WIN_MINMAX)
+# include <windows.h>
+# else
+# define NOMINMAX
+# include <windows.h>
+# undef NOMINMAX
+# endif
+#endif
+
+#if FMT_EXCEPTIONS
+# define FMT_TRY try
+# define FMT_CATCH(x) catch (x)
+#else
+# define FMT_TRY if (true)
+# define FMT_CATCH(x) if (false)
+#endif
+
+#ifdef _MSC_VER
+# pragma warning(push)
+# pragma warning(disable: 4127) // conditional expression is constant
+# pragma warning(disable: 4702) // unreachable code
+// Disable deprecation warning for strerror. The latter is not called but
+// MSVC fails to detect it.
+# pragma warning(disable: 4996)
+#endif
+
+// Dummy implementations of strerror_r and strerror_s called if corresponding
+// system functions are not available.
+FMT_MAYBE_UNUSED
+static inline fmt::internal::Null<> strerror_r(int, char *, ...) {
+ return fmt::internal::Null<>();
+}
+FMT_MAYBE_UNUSED
+static inline fmt::internal::Null<> strerror_s(char *, std::size_t, ...) {
+ return fmt::internal::Null<>();
+}
+
+namespace fmt {
+
+FMT_FUNC internal::RuntimeError::~RuntimeError() FMT_DTOR_NOEXCEPT {}
+FMT_FUNC FormatError::~FormatError() FMT_DTOR_NOEXCEPT {}
+FMT_FUNC SystemError::~SystemError() FMT_DTOR_NOEXCEPT {}
+
+namespace {
+
+#ifndef _MSC_VER
+# define FMT_SNPRINTF snprintf
+#else // _MSC_VER
+inline int fmt_snprintf(char *buffer, size_t size, const char *format, ...) {
+ va_list args;
+ va_start(args, format);
+ int result = vsnprintf_s(buffer, size, _TRUNCATE, format, args);
+ va_end(args);
+ return result;
+}
+# define FMT_SNPRINTF fmt_snprintf
+#endif // _MSC_VER
+
+#if defined(_WIN32) && defined(__MINGW32__) && !defined(__NO_ISOCEXT)
+# define FMT_SWPRINTF snwprintf
+#else
+# define FMT_SWPRINTF swprintf
+#endif // defined(_WIN32) && defined(__MINGW32__) && !defined(__NO_ISOCEXT)
+
+const char RESET_COLOR[] = "\x1b[0m";
+
+typedef void (*FormatFunc)(Writer &, int, StringRef);
+
+// Portable thread-safe version of strerror.
+// Sets buffer to point to a string describing the error code.
+// This can be either a pointer to a string stored in buffer,
+// or a pointer to some static immutable string.
+// Returns one of the following values:
+// 0 - success
+// ERANGE - buffer is not large enough to store the error message
+// other - failure
+// Buffer should be at least of size 1.
+int safe_strerror(
+ int error_code, char *&buffer, std::size_t buffer_size) FMT_NOEXCEPT {
+ FMT_ASSERT(buffer != FMT_NULL && buffer_size != 0, "invalid buffer");
+
+ class StrError {
+ private:
+ int error_code_;
+ char *&buffer_;
+ std::size_t buffer_size_;
+
+ // A noop assignment operator to avoid bogus warnings.
+ void operator=(const StrError &) {}
+
+ // Handle the result of XSI-compliant version of strerror_r.
+ int handle(int result) {
+ // glibc versions before 2.13 return result in errno.
+ return result == -1 ? errno : result;
+ }
+
+ // Handle the result of GNU-specific version of strerror_r.
+ int handle(char *message) {
+ // If the buffer is full then the message is probably truncated.
+ if (message == buffer_ && strlen(buffer_) == buffer_size_ - 1)
+ return ERANGE;
+ buffer_ = message;
+ return 0;
+ }
+
+ // Handle the case when strerror_r is not available.
+ int handle(internal::Null<>) {
+ return fallback(strerror_s(buffer_, buffer_size_, error_code_));
+ }
+
+ // Fallback to strerror_s when strerror_r is not available.
+ int fallback(int result) {
+ // If the buffer is full then the message is probably truncated.
+ return result == 0 && strlen(buffer_) == buffer_size_ - 1 ?
+ ERANGE : result;
+ }
+
+#ifdef __c2__
+# pragma clang diagnostic push
+# pragma clang diagnostic ignored "-Wdeprecated-declarations"
+#endif
+
+ // Fallback to strerror if strerror_r and strerror_s are not available.
+ int fallback(internal::Null<>) {
+ errno = 0;
+ buffer_ = strerror(error_code_);
+ return errno;
+ }
+
+#ifdef __c2__
+# pragma clang diagnostic pop
+#endif
+
+ public:
+ StrError(int err_code, char *&buf, std::size_t buf_size)
+ : error_code_(err_code), buffer_(buf), buffer_size_(buf_size) {}
+
+ int run() {
+ return handle(strerror_r(error_code_, buffer_, buffer_size_));
+ }
+ };
+ return StrError(error_code, buffer, buffer_size).run();
+}
+
+void format_error_code(Writer &out, int error_code,
+ StringRef message) FMT_NOEXCEPT {
+ // Report error code making sure that the output fits into
+ // INLINE_BUFFER_SIZE to avoid dynamic memory allocation and potential
+ // bad_alloc.
+ out.clear();
+ static const char SEP[] = ": ";
+ static const char ERROR_STR[] = "error ";
+ // Subtract 2 to account for terminating null characters in SEP and ERROR_STR.
+ std::size_t error_code_size = sizeof(SEP) + sizeof(ERROR_STR) - 2;
+ typedef internal::IntTraits<int>::MainType MainType;
+ MainType abs_value = static_cast<MainType>(error_code);
+ if (internal::is_negative(error_code)) {
+ abs_value = 0 - abs_value;
+ ++error_code_size;
+ }
+ error_code_size += internal::count_digits(abs_value);
+ if (message.size() <= internal::INLINE_BUFFER_SIZE - error_code_size)
+ out << message << SEP;
+ out << ERROR_STR << error_code;
+ assert(out.size() <= internal::INLINE_BUFFER_SIZE);
+}
+
+void report_error(FormatFunc func, int error_code,
+ StringRef message) FMT_NOEXCEPT {
+ MemoryWriter full_message;
+ func(full_message, error_code, message);
+ // Use Writer::data instead of Writer::c_str to avoid potential memory
+ // allocation.
+ std::fwrite(full_message.data(), full_message.size(), 1, stderr);
+ std::fputc('\n', stderr);
+}
+} // namespace
+
+FMT_FUNC void SystemError::init(
+ int err_code, CStringRef format_str, ArgList args) {
+ error_code_ = err_code;
+ MemoryWriter w;
+ format_system_error(w, err_code, format(format_str, args));
+ std::runtime_error &base = *this;
+ base = std::runtime_error(w.str());
+}
+
+template <typename T>
+int internal::CharTraits<char>::format_float(
+ char *buffer, std::size_t size, const char *format,
+ unsigned width, int precision, T value) {
+ if (width == 0) {
+ return precision < 0 ?
+ FMT_SNPRINTF(buffer, size, format, value) :
+ FMT_SNPRINTF(buffer, size, format, precision, value);
+ }
+ return precision < 0 ?
+ FMT_SNPRINTF(buffer, size, format, width, value) :
+ FMT_SNPRINTF(buffer, size, format, width, precision, value);
+}
+
+template <typename T>
+int internal::CharTraits<wchar_t>::format_float(
+ wchar_t *buffer, std::size_t size, const wchar_t *format,
+ unsigned width, int precision, T value) {
+ if (width == 0) {
+ return precision < 0 ?
+ FMT_SWPRINTF(buffer, size, format, value) :
+ FMT_SWPRINTF(buffer, size, format, precision, value);
+ }
+ return precision < 0 ?
+ FMT_SWPRINTF(buffer, size, format, width, value) :
+ FMT_SWPRINTF(buffer, size, format, width, precision, value);
+}
+
+template <typename T>
+const char internal::BasicData<T>::DIGITS[] =
+ "0001020304050607080910111213141516171819"
+ "2021222324252627282930313233343536373839"
+ "4041424344454647484950515253545556575859"
+ "6061626364656667686970717273747576777879"
+ "8081828384858687888990919293949596979899";
+
+#define FMT_POWERS_OF_10(factor) \
+ factor * 10, \
+ factor * 100, \
+ factor * 1000, \
+ factor * 10000, \
+ factor * 100000, \
+ factor * 1000000, \
+ factor * 10000000, \
+ factor * 100000000, \
+ factor * 1000000000
+
+template <typename T>
+const uint32_t internal::BasicData<T>::POWERS_OF_10_32[] = {
+ 0, FMT_POWERS_OF_10(1)
+};
+
+template <typename T>
+const uint64_t internal::BasicData<T>::POWERS_OF_10_64[] = {
+ 0,
+ FMT_POWERS_OF_10(1),
+ FMT_POWERS_OF_10(ULongLong(1000000000)),
+ // Multiply several constants instead of using a single long long constant
+ // to avoid warnings about C++98 not supporting long long.
+ ULongLong(1000000000) * ULongLong(1000000000) * 10
+};
+
+FMT_FUNC void internal::report_unknown_type(char code, const char *type) {
+ (void)type;
+ if (std::isprint(static_cast<unsigned char>(code))) {
+ FMT_THROW(FormatError(
+ format("unknown format code '{}' for {}", code, type)));
+ }
+ FMT_THROW(FormatError(
+ format("unknown format code '\\x{:02x}' for {}",
+ static_cast<unsigned>(code), type)));
+}
+
+#if FMT_USE_WINDOWS_H
+
+FMT_FUNC internal::UTF8ToUTF16::UTF8ToUTF16(StringRef s) {
+ static const char ERROR_MSG[] = "cannot convert string from UTF-8 to UTF-16";
+ if (s.size() > INT_MAX)
+ FMT_THROW(WindowsError(ERROR_INVALID_PARAMETER, ERROR_MSG));
+ int s_size = static_cast<int>(s.size());
+ int length = MultiByteToWideChar(
+ CP_UTF8, MB_ERR_INVALID_CHARS, s.data(), s_size, FMT_NULL, 0);
+ if (length == 0)
+ FMT_THROW(WindowsError(GetLastError(), ERROR_MSG));
+ buffer_.resize(length + 1);
+ length = MultiByteToWideChar(
+ CP_UTF8, MB_ERR_INVALID_CHARS, s.data(), s_size, &buffer_[0], length);
+ if (length == 0)
+ FMT_THROW(WindowsError(GetLastError(), ERROR_MSG));
+ buffer_[length] = 0;
+}
+
+FMT_FUNC internal::UTF16ToUTF8::UTF16ToUTF8(WStringRef s) {
+ if (int error_code = convert(s)) {
+ FMT_THROW(WindowsError(error_code,
+ "cannot convert string from UTF-16 to UTF-8"));
+ }
+}
+
+FMT_FUNC int internal::UTF16ToUTF8::convert(WStringRef s) {
+ if (s.size() > INT_MAX)
+ return ERROR_INVALID_PARAMETER;
+ int s_size = static_cast<int>(s.size());
+ int length = WideCharToMultiByte(
+ CP_UTF8, 0, s.data(), s_size, FMT_NULL, 0, FMT_NULL, FMT_NULL);
+ if (length == 0)
+ return GetLastError();
+ buffer_.resize(length + 1);
+ length = WideCharToMultiByte(
+ CP_UTF8, 0, s.data(), s_size, &buffer_[0], length, FMT_NULL, FMT_NULL);
+ if (length == 0)
+ return GetLastError();
+ buffer_[length] = 0;
+ return 0;
+}
+
+FMT_FUNC void WindowsError::init(
+ int err_code, CStringRef format_str, ArgList args) {
+ error_code_ = err_code;
+ MemoryWriter w;
+ internal::format_windows_error(w, err_code, format(format_str, args));
+ std::runtime_error &base = *this;
+ base = std::runtime_error(w.str());
+}
+
+FMT_FUNC void internal::format_windows_error(
+ Writer &out, int error_code, StringRef message) FMT_NOEXCEPT {
+ FMT_TRY {
+ MemoryBuffer<wchar_t, INLINE_BUFFER_SIZE> buffer;
+ buffer.resize(INLINE_BUFFER_SIZE);
+ for (;;) {
+ wchar_t *system_message = &buffer[0];
+ int result = FormatMessageW(
+ FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
+ FMT_NULL, error_code, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
+ system_message, static_cast<uint32_t>(buffer.size()), FMT_NULL);
+ if (result != 0) {
+ UTF16ToUTF8 utf8_message;
+ if (utf8_message.convert(system_message) == ERROR_SUCCESS) {
+ out << message << ": " << utf8_message;
+ return;
+ }
+ break;
+ }
+ if (GetLastError() != ERROR_INSUFFICIENT_BUFFER)
+ break; // Can't get error message, report error code instead.
+ buffer.resize(buffer.size() * 2);
+ }
+ } FMT_CATCH(...) {}
+ fmt::format_error_code(out, error_code, message); // 'fmt::' is for bcc32.
+}
+
+#endif // FMT_USE_WINDOWS_H
+
+FMT_FUNC void format_system_error(
+ Writer &out, int error_code, StringRef message) FMT_NOEXCEPT {
+ FMT_TRY {
+ internal::MemoryBuffer<char, internal::INLINE_BUFFER_SIZE> buffer;
+ buffer.resize(internal::INLINE_BUFFER_SIZE);
+ for (;;) {
+ char *system_message = &buffer[0];
+ int result = safe_strerror(error_code, system_message, buffer.size());
+ if (result == 0) {
+ out << message << ": " << system_message;
+ return;
+ }
+ if (result != ERANGE)
+ break; // Can't get error message, report error code instead.
+ buffer.resize(buffer.size() * 2);
+ }
+ } FMT_CATCH(...) {}
+ fmt::format_error_code(out, error_code, message); // 'fmt::' is for bcc32.
+}
+
+template <typename Char>
+void internal::FixedBuffer<Char>::grow(std::size_t) {
+ FMT_THROW(std::runtime_error("buffer overflow"));
+}
+
+FMT_FUNC internal::Arg internal::FormatterBase::do_get_arg(
+ unsigned arg_index, const char *&error) {
+ internal::Arg arg = args_[arg_index];
+ switch (arg.type) {
+ case internal::Arg::NONE:
+ error = "argument index out of range";
+ break;
+ case internal::Arg::NAMED_ARG:
+ arg = *static_cast<const internal::Arg*>(arg.pointer);
+ break;
+ default:
+ /*nothing*/;
+ }
+ return arg;
+}
+
+FMT_FUNC void report_system_error(
+ int error_code, fmt::StringRef message) FMT_NOEXCEPT {
+ // 'fmt::' is for bcc32.
+ report_error(format_system_error, error_code, message);
+}
+
+#if FMT_USE_WINDOWS_H
+FMT_FUNC void report_windows_error(
+ int error_code, fmt::StringRef message) FMT_NOEXCEPT {
+ // 'fmt::' is for bcc32.
+ report_error(internal::format_windows_error, error_code, message);
+}
+#endif
+
+FMT_FUNC void print(std::FILE *f, CStringRef format_str, ArgList args) {
+ MemoryWriter w;
+ w.write(format_str, args);
+ std::fwrite(w.data(), 1, w.size(), f);
+}
+
+FMT_FUNC void print(CStringRef format_str, ArgList args) {
+ print(stdout, format_str, args);
+}
+
+FMT_FUNC void print_colored(Color c, CStringRef format, ArgList args) {
+ char escape[] = "\x1b[30m";
+ escape[3] = static_cast<char>('0' + c);
+ std::fputs(escape, stdout);
+ print(format, args);
+ std::fputs(RESET_COLOR, stdout);
+}
+
+#ifndef FMT_HEADER_ONLY
+
+template struct internal::BasicData<void>;
+
+// Explicit instantiations for char.
+
+template void internal::FixedBuffer<char>::grow(std::size_t);
+
+template FMT_API int internal::CharTraits<char>::format_float(
+ char *buffer, std::size_t size, const char *format,
+ unsigned width, int precision, double value);
+
+template FMT_API int internal::CharTraits<char>::format_float(
+ char *buffer, std::size_t size, const char *format,
+ unsigned width, int precision, long double value);
+
+// Explicit instantiations for wchar_t.
+
+template void internal::FixedBuffer<wchar_t>::grow(std::size_t);
+
+template FMT_API int internal::CharTraits<wchar_t>::format_float(
+ wchar_t *buffer, std::size_t size, const wchar_t *format,
+ unsigned width, int precision, double value);
+
+template FMT_API int internal::CharTraits<wchar_t>::format_float(
+ wchar_t *buffer, std::size_t size, const wchar_t *format,
+ unsigned width, int precision, long double value);
+
+#endif // FMT_HEADER_ONLY
+
+} // namespace fmt
+
+#ifdef _MSC_VER
+# pragma warning(pop)
+#endif
diff --git a/lib/spdlog/fmt/bundled/format.h b/lib/spdlog/fmt/bundled/format.h
new file mode 100644
index 0000000..b4295cd
--- /dev/null
+++ b/lib/spdlog/fmt/bundled/format.h
@@ -0,0 +1,4920 @@
+/*
+ Formatting library for C++
+
+ Copyright (c) 2012 - 2016, Victor Zverovich
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FMT_FORMAT_H_
+#define FMT_FORMAT_H_
+
+#define FMT_INCLUDE
+#include <cassert>
+#include <clocale>
+#include <cmath>
+#include <cstdio>
+#include <cstring>
+#include <limits>
+#include <memory>
+#include <stdexcept>
+#include <string>
+#include <utility> // for std::pair
+#include <vector>
+#undef FMT_INCLUDE
+
+// The fmt library version in the form major * 10000 + minor * 100 + patch.
+#define FMT_VERSION 40100
+
+#if defined(__has_include)
+#define FMT_HAS_INCLUDE(x) __has_include(x)
+#else
+#define FMT_HAS_INCLUDE(x) 0
+#endif
+
+#if (FMT_HAS_INCLUDE(<string_view>) && __cplusplus > 201402L) || (defined(_MSVC_LANG) && _MSVC_LANG > 201402L && _MSC_VER >= 1910)
+#include <string_view>
+#define FMT_HAS_STRING_VIEW 1
+#else
+#define FMT_HAS_STRING_VIEW 0
+#endif
+
+#if defined _SECURE_SCL && _SECURE_SCL
+#define FMT_SECURE_SCL _SECURE_SCL
+#else
+#define FMT_SECURE_SCL 0
+#endif
+
+#if FMT_SECURE_SCL
+#include <iterator>
+#endif
+
+#ifdef _MSC_VER
+#define FMT_MSC_VER _MSC_VER
+#else
+#define FMT_MSC_VER 0
+#endif
+
+#if FMT_MSC_VER && FMT_MSC_VER <= 1500
+typedef unsigned __int32 uint32_t;
+typedef unsigned __int64 uint64_t;
+typedef __int64 intmax_t;
+#else
+#include <stdint.h>
+#endif
+
+#if !defined(FMT_HEADER_ONLY) && defined(_WIN32)
+#ifdef FMT_EXPORT
+#define FMT_API __declspec(dllexport)
+#elif defined(FMT_SHARED)
+#define FMT_API __declspec(dllimport)
+#endif
+#endif
+#ifndef FMT_API
+#define FMT_API
+#endif
+
+#ifdef __GNUC__
+#define FMT_GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__)
+#define FMT_GCC_EXTENSION __extension__
+#if FMT_GCC_VERSION >= 406
+#pragma GCC diagnostic push
+// Disable the warning about "long long" which is sometimes reported even
+// when using __extension__.
+#pragma GCC diagnostic ignored "-Wlong-long"
+// Disable the warning about declaration shadowing because it affects too
+// many valid cases.
+#pragma GCC diagnostic ignored "-Wshadow"
+// Disable the warning about implicit conversions that may change the sign of
+// an integer; silencing it otherwise would require many explicit casts.
+#pragma GCC diagnostic ignored "-Wsign-conversion"
+#endif
+#if __cplusplus >= 201103L || defined __GXX_EXPERIMENTAL_CXX0X__
+#define FMT_HAS_GXX_CXX11 1
+#endif
+#else
+#define FMT_GCC_VERSION 0
+#define FMT_GCC_EXTENSION
+#define FMT_HAS_GXX_CXX11 0
+#endif
+
+#if defined(__INTEL_COMPILER)
+#define FMT_ICC_VERSION __INTEL_COMPILER
+#elif defined(__ICL)
+#define FMT_ICC_VERSION __ICL
+#endif
+
+#if defined(__clang__) && !defined(FMT_ICC_VERSION)
+#define FMT_CLANG_VERSION (__clang_major__ * 100 + __clang_minor__)
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdocumentation-unknown-command"
+#pragma clang diagnostic ignored "-Wpadded"
+#endif
+
+#ifdef __GNUC_LIBSTD__
+#define FMT_GNUC_LIBSTD_VERSION (__GNUC_LIBSTD__ * 100 + __GNUC_LIBSTD_MINOR__)
+#endif
+
+#ifdef __has_feature
+#define FMT_HAS_FEATURE(x) __has_feature(x)
+#else
+#define FMT_HAS_FEATURE(x) 0
+#endif
+
+#ifdef __has_builtin
+#define FMT_HAS_BUILTIN(x) __has_builtin(x)
+#else
+#define FMT_HAS_BUILTIN(x) 0
+#endif
+
+#ifdef __has_cpp_attribute
+#define FMT_HAS_CPP_ATTRIBUTE(x) __has_cpp_attribute(x)
+#else
+#define FMT_HAS_CPP_ATTRIBUTE(x) 0
+#endif
+
+#if FMT_HAS_CPP_ATTRIBUTE(maybe_unused)
+#define FMT_HAS_CXX17_ATTRIBUTE_MAYBE_UNUSED
+// VC++ 1910 support /std: option and that will set _MSVC_LANG macro
+// Clang with Microsoft CodeGen doesn't define _MSVC_LANG macro
+#elif defined(_MSVC_LANG) && _MSVC_LANG > 201402 && _MSC_VER >= 1910
+#define FMT_HAS_CXX17_ATTRIBUTE_MAYBE_UNUSED
+#endif
+
+#ifdef FMT_HAS_CXX17_ATTRIBUTE_MAYBE_UNUSED
+#define FMT_MAYBE_UNUSED [[maybe_unused]]
+// g++/clang++ also support [[gnu::unused]]. However, we don't use it.
+#elif defined(__GNUC__)
+#define FMT_MAYBE_UNUSED __attribute__((unused))
+#else
+#define FMT_MAYBE_UNUSED
+#endif
+
+// Use the compiler's attribute noreturn
+#if defined(__MINGW32__) || defined(__MINGW64__)
+#define FMT_NORETURN __attribute__((noreturn))
+#elif FMT_HAS_CPP_ATTRIBUTE(noreturn) && __cplusplus >= 201103L
+#define FMT_NORETURN [[noreturn]]
+#else
+#define FMT_NORETURN
+#endif
+
+#ifndef FMT_USE_VARIADIC_TEMPLATES
+// Variadic templates are available in GCC since version 4.4
+// (http://gcc.gnu.org/projects/cxx0x.html) and in Visual C++
+// since version 2013.
+#define FMT_USE_VARIADIC_TEMPLATES \
+ (FMT_HAS_FEATURE(cxx_variadic_templates) || (FMT_GCC_VERSION >= 404 && FMT_HAS_GXX_CXX11) || FMT_MSC_VER >= 1800)
+#endif
+
+#ifndef FMT_USE_RVALUE_REFERENCES
+// Don't use rvalue references when compiling with clang and an old libstdc++
+// as the latter doesn't provide std::move.
+#if defined(FMT_GNUC_LIBSTD_VERSION) && FMT_GNUC_LIBSTD_VERSION <= 402
+#define FMT_USE_RVALUE_REFERENCES 0
+#else
+#define FMT_USE_RVALUE_REFERENCES \
+ (FMT_HAS_FEATURE(cxx_rvalue_references) || (FMT_GCC_VERSION >= 403 && FMT_HAS_GXX_CXX11) || FMT_MSC_VER >= 1600)
+#endif
+#endif
+
+#if __cplusplus >= 201103L || FMT_MSC_VER >= 1700
+#define FMT_USE_ALLOCATOR_TRAITS 1
+#else
+#define FMT_USE_ALLOCATOR_TRAITS 0
+#endif
+
+// Check if exceptions are disabled.
+#if defined(__GNUC__) && !defined(__EXCEPTIONS)
+#define FMT_EXCEPTIONS 0
+#endif
+#if FMT_MSC_VER && !_HAS_EXCEPTIONS
+#define FMT_EXCEPTIONS 0
+#endif
+#ifndef FMT_EXCEPTIONS
+#define FMT_EXCEPTIONS 1
+#endif
+
+#ifndef FMT_THROW
+#if FMT_EXCEPTIONS
+#define FMT_THROW(x) throw x
+#else
+#define FMT_THROW(x) assert(false)
+#endif
+#endif
+
+// Define FMT_USE_NOEXCEPT to make fmt use noexcept (C++11 feature).
+#ifndef FMT_USE_NOEXCEPT
+#define FMT_USE_NOEXCEPT 0
+#endif
+
+#if FMT_USE_NOEXCEPT || FMT_HAS_FEATURE(cxx_noexcept) || (FMT_GCC_VERSION >= 408 && FMT_HAS_GXX_CXX11) || FMT_MSC_VER >= 1900
+#define FMT_DETECTED_NOEXCEPT noexcept
+#else
+#define FMT_DETECTED_NOEXCEPT throw()
+#endif
+
+#ifndef FMT_NOEXCEPT
+#if FMT_EXCEPTIONS
+#define FMT_NOEXCEPT FMT_DETECTED_NOEXCEPT
+#else
+#define FMT_NOEXCEPT
+#endif
+#endif
+
+// This is needed because GCC still uses throw() in its headers when exceptions
+// are disabled.
+#if FMT_GCC_VERSION
+#define FMT_DTOR_NOEXCEPT FMT_DETECTED_NOEXCEPT
+#else
+#define FMT_DTOR_NOEXCEPT FMT_NOEXCEPT
+#endif
+
+#ifndef FMT_OVERRIDE
+#if (defined(FMT_USE_OVERRIDE) && FMT_USE_OVERRIDE) || FMT_HAS_FEATURE(cxx_override) || (FMT_GCC_VERSION >= 408 && FMT_HAS_GXX_CXX11) || \
+ FMT_MSC_VER >= 1900
+#define FMT_OVERRIDE override
+#else
+#define FMT_OVERRIDE
+#endif
+#endif
+
+#ifndef FMT_NULL
+#if FMT_HAS_FEATURE(cxx_nullptr) || (FMT_GCC_VERSION >= 408 && FMT_HAS_GXX_CXX11) || FMT_MSC_VER >= 1600
+#define FMT_NULL nullptr
+#else
+#define FMT_NULL NULL
+#endif
+#endif
+
+// A macro to disallow the copy constructor and operator= functions
+// This should be used in the private: declarations for a class
+#ifndef FMT_USE_DELETED_FUNCTIONS
+#define FMT_USE_DELETED_FUNCTIONS 0
+#endif
+
+#if FMT_USE_DELETED_FUNCTIONS || FMT_HAS_FEATURE(cxx_deleted_functions) || (FMT_GCC_VERSION >= 404 && FMT_HAS_GXX_CXX11) || \
+ FMT_MSC_VER >= 1800
+#define FMT_DELETED_OR_UNDEFINED = delete
+#define FMT_DISALLOW_COPY_AND_ASSIGN(TypeName) \
+ TypeName(const TypeName &) = delete; \
+ TypeName &operator=(const TypeName &) = delete
+#else
+#define FMT_DELETED_OR_UNDEFINED
+#define FMT_DISALLOW_COPY_AND_ASSIGN(TypeName) \
+ TypeName(const TypeName &); \
+ TypeName &operator=(const TypeName &)
+#endif
+
+#ifndef FMT_USE_DEFAULTED_FUNCTIONS
+#define FMT_USE_DEFAULTED_FUNCTIONS 0
+#endif
+
+#ifndef FMT_DEFAULTED_COPY_CTOR
+#if FMT_USE_DEFAULTED_FUNCTIONS || FMT_HAS_FEATURE(cxx_defaulted_functions) || (FMT_GCC_VERSION >= 404 && FMT_HAS_GXX_CXX11) || \
+ FMT_MSC_VER >= 1800
+#define FMT_DEFAULTED_COPY_CTOR(TypeName) TypeName(const TypeName &) = default;
+#else
+#define FMT_DEFAULTED_COPY_CTOR(TypeName)
+#endif
+#endif
+
+#ifndef FMT_USE_USER_DEFINED_LITERALS
+// All compilers which support UDLs also support variadic templates. This
+// makes the fmt::literals implementation easier. However, an explicit check
+// for variadic templates is added here just in case.
+// For Intel's compiler both it and the system gcc/msc must support UDLs.
+#if FMT_USE_VARIADIC_TEMPLATES && FMT_USE_RVALUE_REFERENCES && \
+ (FMT_HAS_FEATURE(cxx_user_literals) || (FMT_GCC_VERSION >= 407 && FMT_HAS_GXX_CXX11) || FMT_MSC_VER >= 1900) && \
+ (!defined(FMT_ICC_VERSION) || FMT_ICC_VERSION >= 1500)
+#define FMT_USE_USER_DEFINED_LITERALS 1
+#else
+#define FMT_USE_USER_DEFINED_LITERALS 0
+#endif
+#endif
+
+#ifndef FMT_USE_EXTERN_TEMPLATES
+#define FMT_USE_EXTERN_TEMPLATES (FMT_CLANG_VERSION >= 209 || (FMT_GCC_VERSION >= 303 && FMT_HAS_GXX_CXX11))
+#endif
+
+#ifdef FMT_HEADER_ONLY
+// If header only do not use extern templates.
+#undef FMT_USE_EXTERN_TEMPLATES
+#define FMT_USE_EXTERN_TEMPLATES 0
+#endif
+
+#ifndef FMT_ASSERT
+#define FMT_ASSERT(condition, message) assert((condition) && message)
+#endif
+
+// __builtin_clz is broken in clang with Microsoft CodeGen:
+// https://github.com/fmtlib/fmt/issues/519
+#ifndef _MSC_VER
+#if FMT_GCC_VERSION >= 400 || FMT_HAS_BUILTIN(__builtin_clz)
+#define FMT_BUILTIN_CLZ(n) __builtin_clz(n)
+#endif
+
+#if FMT_GCC_VERSION >= 400 || FMT_HAS_BUILTIN(__builtin_clzll)
+#define FMT_BUILTIN_CLZLL(n) __builtin_clzll(n)
+#endif
+#endif
+
+// Some compilers masquerade as both MSVC and GCC-likes or
+// otherwise support __builtin_clz and __builtin_clzll, so
+// only define FMT_BUILTIN_CLZ using the MSVC intrinsics
+// if the clz and clzll builtins are not available.
+#if FMT_MSC_VER && !defined(FMT_BUILTIN_CLZLL) && !defined(_MANAGED)
+#include <intrin.h> // _BitScanReverse, _BitScanReverse64
+
+namespace fmt {
+namespace internal {
+// avoid Clang with Microsoft CodeGen's -Wunknown-pragmas warning
+#ifndef __clang__
+#pragma intrinsic(_BitScanReverse)
+#endif
+inline uint32_t clz(uint32_t x)
+{
+ unsigned long r = 0;
+ _BitScanReverse(&r, x);
+
+ assert(x != 0);
+ // Static analysis complains about using uninitialized data
+ // "r", but the only way that can happen is if "x" is 0,
+ // which the callers guarantee to not happen.
+#pragma warning(suppress : 6102)
+ return 31 - r;
+}
+#define FMT_BUILTIN_CLZ(n) fmt::internal::clz(n)
+
+// avoid Clang with Microsoft CodeGen's -Wunknown-pragmas warning
+#if defined(_WIN64) && !defined(__clang__)
+#pragma intrinsic(_BitScanReverse64)
+#endif
+
+inline uint32_t clzll(uint64_t x)
+{
+ unsigned long r = 0;
+#ifdef _WIN64
+ _BitScanReverse64(&r, x);
+#else
+ // Scan the high 32 bits.
+ if (_BitScanReverse(&r, static_cast<uint32_t>(x >> 32)))
+ return 63 - (r + 32);
+
+ // Scan the low 32 bits.
+ _BitScanReverse(&r, static_cast<uint32_t>(x));
+#endif
+
+ assert(x != 0);
+ // Static analysis complains about using uninitialized data
+ // "r", but the only way that can happen is if "x" is 0,
+ // which the callers guarantee to not happen.
+#pragma warning(suppress : 6102)
+ return 63 - r;
+}
+#define FMT_BUILTIN_CLZLL(n) fmt::internal::clzll(n)
+} // namespace internal
+} // namespace fmt
+#endif
+
+namespace fmt {
+namespace internal {
+struct DummyInt
+{
+ int data[2];
+ operator int() const
+ {
+ return 0;
+ }
+};
+typedef std::numeric_limits<fmt::internal::DummyInt> FPUtil;
+
+// Dummy implementations of system functions such as signbit and ecvt called
+// if the latter are not available.
+inline DummyInt signbit(...)
+{
+ return DummyInt();
+}
+inline DummyInt _ecvt_s(...)
+{
+ return DummyInt();
+}
+inline DummyInt isinf(...)
+{
+ return DummyInt();
+}
+inline DummyInt _finite(...)
+{
+ return DummyInt();
+}
+inline DummyInt isnan(...)
+{
+ return DummyInt();
+}
+inline DummyInt _isnan(...)
+{
+ return DummyInt();
+}
+
+// A helper function to suppress bogus "conditional expression is constant"
+// warnings.
+template<typename T>
+inline T const_check(T value)
+{
+ return value;
+}
+} // namespace internal
+} // namespace fmt
+
+namespace std {
+// Standard permits specialization of std::numeric_limits. This specialization
+// is used to resolve ambiguity between isinf and std::isinf in glibc:
+// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=48891
+// and the same for isnan and signbit.
+template<>
+class numeric_limits<fmt::internal::DummyInt> : public std::numeric_limits<int>
+{
+public:
+ // Portable version of isinf.
+ template<typename T>
+ static bool isinfinity(T x)
+ {
+ using namespace fmt::internal;
+ // The resolution "priority" is:
+ // isinf macro > std::isinf > ::isinf > fmt::internal::isinf
+ if (const_check(sizeof(isinf(x)) == sizeof(bool) || sizeof(isinf(x)) == sizeof(int)))
+ {
+ return isinf(x) != 0;
+ }
+ return !_finite(static_cast<double>(x));
+ }
+
+ // Portable version of isnan.
+ template<typename T>
+ static bool isnotanumber(T x)
+ {
+ using namespace fmt::internal;
+ if (const_check(sizeof(isnan(x)) == sizeof(bool) || sizeof(isnan(x)) == sizeof(int)))
+ {
+ return isnan(x) != 0;
+ }
+ return _isnan(static_cast<double>(x)) != 0;
+ }
+
+ // Portable version of signbit.
+ static bool isnegative(double x)
+ {
+ using namespace fmt::internal;
+ if (const_check(sizeof(signbit(x)) == sizeof(bool) || sizeof(signbit(x)) == sizeof(int)))
+ {
+ return signbit(x) != 0;
+ }
+ if (x < 0)
+ return true;
+ if (!isnotanumber(x))
+ return false;
+ int dec = 0, sign = 0;
+ char buffer[2]; // The buffer size must be >= 2 or _ecvt_s will fail.
+ _ecvt_s(buffer, sizeof(buffer), x, 0, &dec, &sign);
+ return sign != 0;
+ }
+};
+} // namespace std
+
+namespace fmt {
+
+// Fix the warning about long long on older versions of GCC
+// that don't support the diagnostic pragma.
+FMT_GCC_EXTENSION typedef long long LongLong;
+FMT_GCC_EXTENSION typedef unsigned long long ULongLong;
+
+#if FMT_USE_RVALUE_REFERENCES
+using std::move;
+#endif
+
+template<typename Char>
+class BasicWriter;
+
+typedef BasicWriter<char> Writer;
+typedef BasicWriter<wchar_t> WWriter;
+
+template<typename Char>
+class ArgFormatter;
+
+struct FormatSpec;
+
+template<typename Impl, typename Char, typename Spec = fmt::FormatSpec>
+class BasicPrintfArgFormatter;
+
+template<typename CharType, typename ArgFormatter = fmt::ArgFormatter<CharType>>
+class BasicFormatter;
+
+/**
+ \rst
+ A string reference. It can be constructed from a C string or
+ ``std::basic_string``.
+
+ You can use one of the following typedefs for common character types:
+
+ +------------+-------------------------+
+ | Type | Definition |
+ +============+=========================+
+ | StringRef | BasicStringRef<char> |
+ +------------+-------------------------+
+ | WStringRef | BasicStringRef<wchar_t> |
+ +------------+-------------------------+
+
+ This class is most useful as a parameter type to allow passing
+ different types of strings to a function, for example::
+
+ template <typename... Args>
+ std::string format(StringRef format_str, const Args & ... args);
+
+ format("{}", 42);
+ format(std::string("{}"), 42);
+ \endrst
+ */
+template<typename Char>
+class BasicStringRef
+{
+private:
+ const Char *data_;
+ std::size_t size_;
+
+public:
+ /** Constructs a string reference object from a C string and a size. */
+ BasicStringRef(const Char *s, std::size_t size)
+ : data_(s)
+ , size_(size)
+ {
+ }
+
+ /**
+ \rst
+ Constructs a string reference object from a C string computing
+ the size with ``std::char_traits<Char>::length``.
+ \endrst
+ */
+ BasicStringRef(const Char *s)
+ : data_(s)
+ , size_(std::char_traits<Char>::length(s))
+ {
+ }
+
+ /**
+ \rst
+ Constructs a string reference from a ``std::basic_string`` object.
+ \endrst
+ */
+ template<typename Allocator>
+ BasicStringRef(const std::basic_string<Char, std::char_traits<Char>, Allocator> &s)
+ : data_(s.c_str())
+ , size_(s.size())
+ {
+ }
+
+#if FMT_HAS_STRING_VIEW
+ /**
+ \rst
+ Constructs a string reference from a ``std::basic_string_view`` object.
+ \endrst
+ */
+ BasicStringRef(const std::basic_string_view<Char, std::char_traits<Char>> &s)
+ : data_(s.data())
+ , size_(s.size())
+ {
+ }
+
+ /**
+ \rst
+ Converts a string reference to an ``std::string_view`` object.
+ \endrst
+ */
+ explicit operator std::basic_string_view<Char>() const FMT_NOEXCEPT
+ {
+ return std::basic_string_view<Char>(data_, size_);
+ }
+#endif
+
+ /**
+ \rst
+ Converts a string reference to an ``std::string`` object.
+ \endrst
+ */
+ std::basic_string<Char> to_string() const
+ {
+ return std::basic_string<Char>(data_, size_);
+ }
+
+ /** Returns a pointer to the string data. */
+ const Char *data() const
+ {
+ return data_;
+ }
+
+ /** Returns the string size. */
+ std::size_t size() const
+ {
+ return size_;
+ }
+
+ // Lexicographically compare this string reference to other.
+ int compare(BasicStringRef other) const
+ {
+ std::size_t size = size_ < other.size_ ? size_ : other.size_;
+ int result = std::char_traits<Char>::compare(data_, other.data_, size);
+ if (result == 0)
+ result = size_ == other.size_ ? 0 : (size_ < other.size_ ? -1 : 1);
+ return result;
+ }
+
+ friend bool operator==(BasicStringRef lhs, BasicStringRef rhs)
+ {
+ return lhs.compare(rhs) == 0;
+ }
+ friend bool operator!=(BasicStringRef lhs, BasicStringRef rhs)
+ {
+ return lhs.compare(rhs) != 0;
+ }
+ friend bool operator<(BasicStringRef lhs, BasicStringRef rhs)
+ {
+ return lhs.compare(rhs) < 0;
+ }
+ friend bool operator<=(BasicStringRef lhs, BasicStringRef rhs)
+ {
+ return lhs.compare(rhs) <= 0;
+ }
+ friend bool operator>(BasicStringRef lhs, BasicStringRef rhs)
+ {
+ return lhs.compare(rhs) > 0;
+ }
+ friend bool operator>=(BasicStringRef lhs, BasicStringRef rhs)
+ {
+ return lhs.compare(rhs) >= 0;
+ }
+};
+
+typedef BasicStringRef<char> StringRef;
+typedef BasicStringRef<wchar_t> WStringRef;
+
+/**
+ \rst
+ A reference to a null terminated string. It can be constructed from a C
+ string or ``std::basic_string``.
+
+ You can use one of the following typedefs for common character types:
+
+ +-------------+--------------------------+
+ | Type | Definition |
+ +=============+==========================+
+ | CStringRef | BasicCStringRef<char> |
+ +-------------+--------------------------+
+ | WCStringRef | BasicCStringRef<wchar_t> |
+ +-------------+--------------------------+
+
+ This class is most useful as a parameter type to allow passing
+ different types of strings to a function, for example::
+
+ template <typename... Args>
+ std::string format(CStringRef format_str, const Args & ... args);
+
+ format("{}", 42);
+ format(std::string("{}"), 42);
+ \endrst
+ */
+template<typename Char>
+class BasicCStringRef
+{
+private:
+ const Char *data_;
+
+public:
+ /** Constructs a string reference object from a C string. */
+ BasicCStringRef(const Char *s)
+ : data_(s)
+ {
+ }
+
+ /**
+ \rst
+ Constructs a string reference from a ``std::basic_string`` object.
+ \endrst
+ */
+ template<typename Allocator>
+ BasicCStringRef(const std::basic_string<Char, std::char_traits<Char>, Allocator> &s)
+ : data_(s.c_str())
+ {
+ }
+
+ /** Returns the pointer to a C string. */
+ const Char *c_str() const
+ {
+ return data_;
+ }
+};
+
+typedef BasicCStringRef<char> CStringRef;
+typedef BasicCStringRef<wchar_t> WCStringRef;
+
+/** A formatting error such as invalid format string. */
+class FormatError : public std::runtime_error
+{
+public:
+ explicit FormatError(CStringRef message)
+ : std::runtime_error(message.c_str())
+ {
+ }
+ FormatError(const FormatError &ferr)
+ : std::runtime_error(ferr)
+ {
+ }
+ FMT_API ~FormatError() FMT_DTOR_NOEXCEPT FMT_OVERRIDE;
+};
+
+namespace internal {
+
+// MakeUnsigned<T>::Type gives an unsigned type corresponding to integer type T.
+template<typename T>
+struct MakeUnsigned
+{
+ typedef T Type;
+};
+
+#define FMT_SPECIALIZE_MAKE_UNSIGNED(T, U) \
+ template<> \
+ struct MakeUnsigned<T> \
+ { \
+ typedef U Type; \
+ }
+
+FMT_SPECIALIZE_MAKE_UNSIGNED(char, unsigned char);
+FMT_SPECIALIZE_MAKE_UNSIGNED(signed char, unsigned char);
+FMT_SPECIALIZE_MAKE_UNSIGNED(short, unsigned short);
+FMT_SPECIALIZE_MAKE_UNSIGNED(int, unsigned);
+FMT_SPECIALIZE_MAKE_UNSIGNED(long, unsigned long);
+FMT_SPECIALIZE_MAKE_UNSIGNED(LongLong, ULongLong);
+
+// Casts nonnegative integer to unsigned.
+template<typename Int>
+inline typename MakeUnsigned<Int>::Type to_unsigned(Int value)
+{
+ FMT_ASSERT(value >= 0, "negative value");
+ return static_cast<typename MakeUnsigned<Int>::Type>(value);
+}
+
+// The number of characters to store in the MemoryBuffer object itself
+// to avoid dynamic memory allocation.
+enum
+{
+ INLINE_BUFFER_SIZE = 500
+};
+
+#if FMT_SECURE_SCL
+// Use checked iterator to avoid warnings on MSVC.
+template<typename T>
+inline stdext::checked_array_iterator<T *> make_ptr(T *ptr, std::size_t size)
+{
+ return stdext::checked_array_iterator<T *>(ptr, size);
+}
+#else
+template<typename T>
+inline T *make_ptr(T *ptr, std::size_t)
+{
+ return ptr;
+}
+#endif
+} // namespace internal
+
+/**
+ \rst
+ A buffer supporting a subset of ``std::vector``'s operations.
+ \endrst
+ */
+template<typename T>
+class Buffer
+{
+private:
+ FMT_DISALLOW_COPY_AND_ASSIGN(Buffer);
+
+protected:
+ T *ptr_;
+ std::size_t size_;
+ std::size_t capacity_;
+
+ Buffer(T *ptr = FMT_NULL, std::size_t capacity = 0)
+ : ptr_(ptr)
+ , size_(0)
+ , capacity_(capacity)
+ {
+ }
+
+ /**
+ \rst
+ Increases the buffer capacity to hold at least *size* elements updating
+ ``ptr_`` and ``capacity_``.
+ \endrst
+ */
+ virtual void grow(std::size_t size) = 0;
+
+public:
+ virtual ~Buffer() {}
+
+ /** Returns the size of this buffer. */
+ std::size_t size() const
+ {
+ return size_;
+ }
+
+ /** Returns the capacity of this buffer. */
+ std::size_t capacity() const
+ {
+ return capacity_;
+ }
+
+ /**
+ Resizes the buffer. If T is a POD type new elements may not be initialized.
+ */
+ void resize(std::size_t new_size)
+ {
+ if (new_size > capacity_)
+ grow(new_size);
+ size_ = new_size;
+ }
+
+ /**
+ \rst
+ Reserves space to store at least *capacity* elements.
+ \endrst
+ */
+ void reserve(std::size_t capacity)
+ {
+ if (capacity > capacity_)
+ grow(capacity);
+ }
+
+ void clear() FMT_NOEXCEPT
+ {
+ size_ = 0;
+ }
+
+ void push_back(const T &value)
+ {
+ if (size_ == capacity_)
+ grow(size_ + 1);
+ ptr_[size_++] = value;
+ }
+
+ /** Appends data to the end of the buffer. */
+ template<typename U>
+ void append(const U *begin, const U *end);
+
+ T &operator[](std::size_t index)
+ {
+ return ptr_[index];
+ }
+ const T &operator[](std::size_t index) const
+ {
+ return ptr_[index];
+ }
+};
+
+template<typename T>
+template<typename U>
+void Buffer<T>::append(const U *begin, const U *end)
+{
+ FMT_ASSERT(end >= begin, "negative value");
+ std::size_t new_size = size_ + static_cast<std::size_t>(end - begin);
+ if (new_size > capacity_)
+ grow(new_size);
+ std::uninitialized_copy(begin, end, internal::make_ptr(ptr_, capacity_) + size_);
+ size_ = new_size;
+}
+
+namespace internal {
+
+// A memory buffer for trivially copyable/constructible types with the first
+// SIZE elements stored in the object itself.
+template<typename T, std::size_t SIZE, typename Allocator = std::allocator<T>>
+class MemoryBuffer : private Allocator, public Buffer<T>
+{
+private:
+ T data_[SIZE];
+
+ // Deallocate memory allocated by the buffer.
+ void deallocate()
+ {
+ if (this->ptr_ != data_)
+ Allocator::deallocate(this->ptr_, this->capacity_);
+ }
+
+protected:
+ void grow(std::size_t size) FMT_OVERRIDE;
+
+public:
+ explicit MemoryBuffer(const Allocator &alloc = Allocator())
+ : Allocator(alloc)
+ , Buffer<T>(data_, SIZE)
+ {
+ }
+ ~MemoryBuffer() FMT_OVERRIDE
+ {
+ deallocate();
+ }
+
+#if FMT_USE_RVALUE_REFERENCES
+private:
+ // Move data from other to this buffer.
+ void move(MemoryBuffer &other)
+ {
+ Allocator &this_alloc = *this, &other_alloc = other;
+ this_alloc = std::move(other_alloc);
+ this->size_ = other.size_;
+ this->capacity_ = other.capacity_;
+ if (other.ptr_ == other.data_)
+ {
+ this->ptr_ = data_;
+ std::uninitialized_copy(other.data_, other.data_ + this->size_, make_ptr(data_, this->capacity_));
+ }
+ else
+ {
+ this->ptr_ = other.ptr_;
+ // Set pointer to the inline array so that delete is not called
+ // when deallocating.
+ other.ptr_ = other.data_;
+ }
+ }
+
+public:
+ MemoryBuffer(MemoryBuffer &&other)
+ {
+ move(other);
+ }
+
+ MemoryBuffer &operator=(MemoryBuffer &&other)
+ {
+ assert(this != &other);
+ deallocate();
+ move(other);
+ return *this;
+ }
+#endif
+
+ // Returns a copy of the allocator associated with this buffer.
+ Allocator get_allocator() const
+ {
+ return *this;
+ }
+};
+
+template<typename T, std::size_t SIZE, typename Allocator>
+void MemoryBuffer<T, SIZE, Allocator>::grow(std::size_t size)
+{
+ std::size_t new_capacity = this->capacity_ + this->capacity_ / 2;
+ if (size > new_capacity)
+ new_capacity = size;
+#if FMT_USE_ALLOCATOR_TRAITS
+ T *new_ptr = std::allocator_traits<Allocator>::allocate(*this, new_capacity, FMT_NULL);
+#else
+ T *new_ptr = this->allocate(new_capacity, FMT_NULL);
+#endif
+ // The following code doesn't throw, so the raw pointer above doesn't leak.
+ std::uninitialized_copy(this->ptr_, this->ptr_ + this->size_, make_ptr(new_ptr, new_capacity));
+ std::size_t old_capacity = this->capacity_;
+ T *old_ptr = this->ptr_;
+ this->capacity_ = new_capacity;
+ this->ptr_ = new_ptr;
+ // deallocate may throw (at least in principle), but it doesn't matter since
+ // the buffer already uses the new storage and will deallocate it in case
+ // of exception.
+ if (old_ptr != data_)
+ Allocator::deallocate(old_ptr, old_capacity);
+}
+
+// A fixed-size buffer.
+template<typename Char>
+class FixedBuffer : public fmt::Buffer<Char>
+{
+public:
+ FixedBuffer(Char *array, std::size_t size)
+ : fmt::Buffer<Char>(array, size)
+ {
+ }
+
+protected:
+ FMT_API void grow(std::size_t size) FMT_OVERRIDE;
+};
+
+template<typename Char>
+class BasicCharTraits
+{
+public:
+#if FMT_SECURE_SCL
+ typedef stdext::checked_array_iterator<Char *> CharPtr;
+#else
+ typedef Char *CharPtr;
+#endif
+ static Char cast(int value)
+ {
+ return static_cast<Char>(value);
+ }
+};
+
+template<typename Char>
+class CharTraits;
+
+template<>
+class CharTraits<char> : public BasicCharTraits<char>
+{
+private:
+ // Conversion from wchar_t to char is not allowed.
+ static char convert(wchar_t);
+
+public:
+ static char convert(char value)
+ {
+ return value;
+ }
+
+ // Formats a floating-point number.
+ template<typename T>
+ FMT_API static int format_float(char *buffer, std::size_t size, const char *format, unsigned width, int precision, T value);
+};
+
+#if FMT_USE_EXTERN_TEMPLATES
+extern template int CharTraits<char>::format_float<double>(
+ char *buffer, std::size_t size, const char *format, unsigned width, int precision, double value);
+extern template int CharTraits<char>::format_float<long double>(
+ char *buffer, std::size_t size, const char *format, unsigned width, int precision, long double value);
+#endif
+
+template<>
+class CharTraits<wchar_t> : public BasicCharTraits<wchar_t>
+{
+public:
+ static wchar_t convert(char value)
+ {
+ return value;
+ }
+ static wchar_t convert(wchar_t value)
+ {
+ return value;
+ }
+
+ template<typename T>
+ FMT_API static int format_float(wchar_t *buffer, std::size_t size, const wchar_t *format, unsigned width, int precision, T value);
+};
+
+#if FMT_USE_EXTERN_TEMPLATES
+extern template int CharTraits<wchar_t>::format_float<double>(
+ wchar_t *buffer, std::size_t size, const wchar_t *format, unsigned width, int precision, double value);
+extern template int CharTraits<wchar_t>::format_float<long double>(
+ wchar_t *buffer, std::size_t size, const wchar_t *format, unsigned width, int precision, long double value);
+#endif
+
+// Checks if a number is negative - used to avoid warnings.
+template<bool IsSigned>
+struct SignChecker
+{
+ template<typename T>
+ static bool is_negative(T value)
+ {
+ return value < 0;
+ }
+};
+
+template<>
+struct SignChecker<false>
+{
+ template<typename T>
+ static bool is_negative(T)
+ {
+ return false;
+ }
+};
+
+// Returns true if value is negative, false otherwise.
+// Same as (value < 0) but doesn't produce warnings if T is an unsigned type.
+template<typename T>
+inline bool is_negative(T value)
+{
+ return SignChecker<std::numeric_limits<T>::is_signed>::is_negative(value);
+}
+
+// Selects uint32_t if FitsIn32Bits is true, uint64_t otherwise.
+template<bool FitsIn32Bits>
+struct TypeSelector
+{
+ typedef uint32_t Type;
+};
+
+template<>
+struct TypeSelector<false>
+{
+ typedef uint64_t Type;
+};
+
+template<typename T>
+struct IntTraits
+{
+ // Smallest of uint32_t and uint64_t that is large enough to represent
+ // all values of T.
+ typedef typename TypeSelector<std::numeric_limits<T>::digits <= 32>::Type MainType;
+};
+
+FMT_API FMT_NORETURN void report_unknown_type(char code, const char *type);
+
+// Static data is placed in this class template to allow header-only
+// configuration.
+template<typename T = void>
+struct FMT_API BasicData
+{
+ static const uint32_t POWERS_OF_10_32[];
+ static const uint64_t POWERS_OF_10_64[];
+ static const char DIGITS[];
+};
+
+#if FMT_USE_EXTERN_TEMPLATES
+extern template struct BasicData<void>;
+#endif
+
+typedef BasicData<> Data;
+
+#ifdef FMT_BUILTIN_CLZLL
+// Returns the number of decimal digits in n. Leading zeros are not counted
+// except for n == 0 in which case count_digits returns 1.
+inline unsigned count_digits(uint64_t n)
+{
+ // Based on http://graphics.stanford.edu/~seander/bithacks.html#IntegerLog10
+ // and the benchmark https://github.com/localvoid/cxx-benchmark-count-digits.
+ int t = (64 - FMT_BUILTIN_CLZLL(n | 1)) * 1233 >> 12;
+ return to_unsigned(t) - (n < Data::POWERS_OF_10_64[t]) + 1;
+}
+#else
+// Fallback version of count_digits used when __builtin_clz is not available.
+inline unsigned count_digits(uint64_t n)
+{
+ unsigned count = 1;
+ for (;;)
+ {
+ // Integer division is slow so do it for a group of four digits instead
+ // of for every digit. The idea comes from the talk by Alexandrescu
+ // "Three Optimization Tips for C++". See speed-test for a comparison.
+ if (n < 10)
+ return count;
+ if (n < 100)
+ return count + 1;
+ if (n < 1000)
+ return count + 2;
+ if (n < 10000)
+ return count + 3;
+ n /= 10000u;
+ count += 4;
+ }
+}
+#endif
+
+#ifdef FMT_BUILTIN_CLZ
+// Optional version of count_digits for better performance on 32-bit platforms.
+inline unsigned count_digits(uint32_t n)
+{
+ int t = (32 - FMT_BUILTIN_CLZ(n | 1)) * 1233 >> 12;
+ return to_unsigned(t) - (n < Data::POWERS_OF_10_32[t]) + 1;
+}
+#endif
+
+// A functor that doesn't add a thousands separator.
+struct NoThousandsSep
+{
+ template<typename Char>
+ void operator()(Char *)
+ {
+ }
+};
+
+// A functor that adds a thousands separator.
+class ThousandsSep
+{
+private:
+ fmt::StringRef sep_;
+
+ // Index of a decimal digit with the least significant digit having index 0.
+ unsigned digit_index_;
+
+public:
+ explicit ThousandsSep(fmt::StringRef sep)
+ : sep_(sep)
+ , digit_index_(0)
+ {
+ }
+
+ template<typename Char>
+ void operator()(Char *&buffer)
+ {
+ if (++digit_index_ % 3 != 0)
+ return;
+ buffer -= sep_.size();
+ std::uninitialized_copy(sep_.data(), sep_.data() + sep_.size(), internal::make_ptr(buffer, sep_.size()));
+ }
+};
+
+// Formats a decimal unsigned integer value writing into buffer.
+// thousands_sep is a functor that is called after writing each char to
+// add a thousands separator if necessary.
+template<typename UInt, typename Char, typename ThousandsSep>
+inline void format_decimal(Char *buffer, UInt value, unsigned num_digits, ThousandsSep thousands_sep)
+{
+ buffer += num_digits;
+ while (value >= 100)
+ {
+ // Integer division is slow so do it for a group of two digits instead
+ // of for every digit. The idea comes from the talk by Alexandrescu
+ // "Three Optimization Tips for C++". See speed-test for a comparison.
+ unsigned index = static_cast<unsigned>((value % 100) * 2);
+ value /= 100;
+ *--buffer = Data::DIGITS[index + 1];
+ thousands_sep(buffer);
+ *--buffer = Data::DIGITS[index];
+ thousands_sep(buffer);
+ }
+ if (value < 10)
+ {
+ *--buffer = static_cast<char>('0' + value);
+ return;
+ }
+ unsigned index = static_cast<unsigned>(value * 2);
+ *--buffer = Data::DIGITS[index + 1];
+ thousands_sep(buffer);
+ *--buffer = Data::DIGITS[index];
+}
+
+template<typename UInt, typename Char>
+inline void format_decimal(Char *buffer, UInt value, unsigned num_digits)
+{
+ format_decimal(buffer, value, num_digits, NoThousandsSep());
+ return;
+}
+
+#ifndef _WIN32
+#define FMT_USE_WINDOWS_H 0
+#elif !defined(FMT_USE_WINDOWS_H)
+#define FMT_USE_WINDOWS_H 1
+#endif
+
+// Define FMT_USE_WINDOWS_H to 0 to disable use of windows.h.
+// All the functionality that relies on it will be disabled too.
+#if FMT_USE_WINDOWS_H
+// A converter from UTF-8 to UTF-16.
+// It is only provided for Windows since other systems support UTF-8 natively.
+class UTF8ToUTF16
+{
+private:
+ MemoryBuffer<wchar_t, INLINE_BUFFER_SIZE> buffer_;
+
+public:
+ FMT_API explicit UTF8ToUTF16(StringRef s);
+ operator WStringRef() const
+ {
+ return WStringRef(&buffer_[0], size());
+ }
+ size_t size() const
+ {
+ return buffer_.size() - 1;
+ }
+ const wchar_t *c_str() const
+ {
+ return &buffer_[0];
+ }
+ std::wstring str() const
+ {
+ return std::wstring(&buffer_[0], size());
+ }
+};
+
+// A converter from UTF-16 to UTF-8.
+// It is only provided for Windows since other systems support UTF-8 natively.
+class UTF16ToUTF8
+{
+private:
+ MemoryBuffer<char, INLINE_BUFFER_SIZE> buffer_;
+
+public:
+ UTF16ToUTF8() {}
+ FMT_API explicit UTF16ToUTF8(WStringRef s);
+ operator StringRef() const
+ {
+ return StringRef(&buffer_[0], size());
+ }
+ size_t size() const
+ {
+ return buffer_.size() - 1;
+ }
+ const char *c_str() const
+ {
+ return &buffer_[0];
+ }
+ std::string str() const
+ {
+ return std::string(&buffer_[0], size());
+ }
+
+ // Performs conversion returning a system error code instead of
+ // throwing exception on conversion error. This method may still throw
+ // in case of memory allocation error.
+ FMT_API int convert(WStringRef s);
+};
+
+FMT_API void format_windows_error(fmt::Writer &out, int error_code, fmt::StringRef message) FMT_NOEXCEPT;
+#endif
+
+// A formatting argument value.
+struct Value
+{
+ template<typename Char>
+ struct StringValue
+ {
+ const Char *value;
+ std::size_t size;
+ };
+
+ typedef void (*FormatFunc)(void *formatter, const void *arg, void *format_str_ptr);
+
+ struct CustomValue
+ {
+ const void *value;
+ FormatFunc format;
+ };
+
+ union
+ {
+ int int_value;
+ unsigned uint_value;
+ LongLong long_long_value;
+ ULongLong ulong_long_value;
+ double double_value;
+ long double long_double_value;
+ const void *pointer;
+ StringValue<char> string;
+ StringValue<signed char> sstring;
+ StringValue<unsigned char> ustring;
+ StringValue<wchar_t> wstring;
+ CustomValue custom;
+ };
+
+ enum Type
+ {
+ NONE,
+ NAMED_ARG,
+ // Integer types should go first,
+ INT,
+ UINT,
+ LONG_LONG,
+ ULONG_LONG,
+ BOOL,
+ CHAR,
+ LAST_INTEGER_TYPE = CHAR,
+ // followed by floating-point types.
+ DOUBLE,
+ LONG_DOUBLE,
+ LAST_NUMERIC_TYPE = LONG_DOUBLE,
+ CSTRING,
+ STRING,
+ WSTRING,
+ POINTER,
+ CUSTOM
+ };
+};
+
+// A formatting argument. It is a trivially copyable/constructible type to
+// allow storage in internal::MemoryBuffer.
+struct Arg : Value
+{
+ Type type;
+};
+
+template<typename Char>
+struct NamedArg;
+template<typename Char, typename T>
+struct NamedArgWithType;
+
+template<typename T = void>
+struct Null
+{
+};
+
+// A helper class template to enable or disable overloads taking wide
+// characters and strings in MakeValue.
+template<typename T, typename Char>
+struct WCharHelper
+{
+ typedef Null<T> Supported;
+ typedef T Unsupported;
+};
+
+template<typename T>
+struct WCharHelper<T, wchar_t>
+{
+ typedef T Supported;
+ typedef Null<T> Unsupported;
+};
+
+typedef char Yes[1];
+typedef char No[2];
+
+template<typename T>
+T &get();
+
+// These are non-members to workaround an overload resolution bug in bcc32.
+Yes &convert(fmt::ULongLong);
+No &convert(...);
+
+template<typename T, bool ENABLE_CONVERSION>
+struct ConvertToIntImpl
+{
+ enum
+ {
+ value = ENABLE_CONVERSION
+ };
+};
+
+template<typename T, bool ENABLE_CONVERSION>
+struct ConvertToIntImpl2
+{
+ enum
+ {
+ value = false
+ };
+};
+
+template<typename T>
+struct ConvertToIntImpl2<T, true>
+{
+ enum
+ {
+ // Don't convert numeric types.
+ value = ConvertToIntImpl<T, !std::numeric_limits<T>::is_specialized>::value
+ };
+};
+
+template<typename T>
+struct ConvertToInt
+{
+ enum
+ {
+ enable_conversion = sizeof(fmt::internal::convert(get<T>())) == sizeof(Yes)
+ };
+ enum
+ {
+ value = ConvertToIntImpl2<T, enable_conversion>::value
+ };
+};
+
+#define FMT_DISABLE_CONVERSION_TO_INT(Type) \
+ template<> \
+ struct ConvertToInt<Type> \
+ { \
+ enum \
+ { \
+ value = 0 \
+ }; \
+ }
+
+// Silence warnings about convering float to int.
+FMT_DISABLE_CONVERSION_TO_INT(float);
+FMT_DISABLE_CONVERSION_TO_INT(double);
+FMT_DISABLE_CONVERSION_TO_INT(long double);
+
+template<bool B, class T = void>
+struct EnableIf
+{
+};
+
+template<class T>
+struct EnableIf<true, T>
+{
+ typedef T type;
+};
+
+template<bool B, class T, class F>
+struct Conditional
+{
+ typedef T type;
+};
+
+template<class T, class F>
+struct Conditional<false, T, F>
+{
+ typedef F type;
+};
+
+// For bcc32 which doesn't understand ! in template arguments.
+template<bool>
+struct Not
+{
+ enum
+ {
+ value = 0
+ };
+};
+
+template<>
+struct Not<false>
+{
+ enum
+ {
+ value = 1
+ };
+};
+
+template<typename T>
+struct FalseType
+{
+ enum
+ {
+ value = 0
+ };
+};
+
+template<typename T, T>
+struct LConvCheck
+{
+ LConvCheck(int) {}
+};
+
+// Returns the thousands separator for the current locale.
+// We check if ``lconv`` contains ``thousands_sep`` because on Android
+// ``lconv`` is stubbed as an empty struct.
+template<typename LConv>
+inline StringRef thousands_sep(LConv *lc, LConvCheck<char * LConv::*, &LConv::thousands_sep> = 0)
+{
+ return lc->thousands_sep;
+}
+
+inline fmt::StringRef thousands_sep(...)
+{
+ return "";
+}
+
+#define FMT_CONCAT(a, b) a##b
+
+#if FMT_GCC_VERSION >= 303
+#define FMT_UNUSED __attribute__((unused))
+#else
+#define FMT_UNUSED
+#endif
+
+#ifndef FMT_USE_STATIC_ASSERT
+#define FMT_USE_STATIC_ASSERT 0
+#endif
+
+#if FMT_USE_STATIC_ASSERT || FMT_HAS_FEATURE(cxx_static_assert) || (FMT_GCC_VERSION >= 403 && FMT_HAS_GXX_CXX11) || _MSC_VER >= 1600
+#define FMT_STATIC_ASSERT(cond, message) static_assert(cond, message)
+#else
+#define FMT_CONCAT_(a, b) FMT_CONCAT(a, b)
+#define FMT_STATIC_ASSERT(cond, message) typedef int FMT_CONCAT_(Assert, __LINE__)[(cond) ? 1 : -1] FMT_UNUSED
+#endif
+
+template<typename Formatter>
+void format_arg(Formatter &, ...)
+{
+ FMT_STATIC_ASSERT(FalseType<Formatter>::value, "Cannot format argument. To enable the use of ostream "
+ "operator<< include fmt/ostream.h. Otherwise provide "
+ "an overload of format_arg.");
+}
+
+// Makes an Arg object from any type.
+template<typename Formatter>
+class MakeValue : public Arg
+{
+public:
+ typedef typename Formatter::Char Char;
+
+private:
+ // The following two methods are private to disallow formatting of
+ // arbitrary pointers. If you want to output a pointer cast it to
+ // "void *" or "const void *". In particular, this forbids formatting
+ // of "[const] volatile char *" which is printed as bool by iostreams.
+ // Do not implement!
+ template<typename T>
+ MakeValue(const T *value);
+ template<typename T>
+ MakeValue(T *value);
+
+ // The following methods are private to disallow formatting of wide
+ // characters and strings into narrow strings as in
+ // fmt::format("{}", L"test");
+ // To fix this, use a wide format string: fmt::format(L"{}", L"test").
+#if !FMT_MSC_VER || defined(_NATIVE_WCHAR_T_DEFINED)
+ MakeValue(typename WCharHelper<wchar_t, Char>::Unsupported);
+#endif
+ MakeValue(typename WCharHelper<wchar_t *, Char>::Unsupported);
+ MakeValue(typename WCharHelper<const wchar_t *, Char>::Unsupported);
+ MakeValue(typename WCharHelper<const std::wstring &, Char>::Unsupported);
+#if FMT_HAS_STRING_VIEW
+ MakeValue(typename WCharHelper<const std::wstring_view &, Char>::Unsupported);
+#endif
+ MakeValue(typename WCharHelper<WStringRef, Char>::Unsupported);
+
+ void set_string(StringRef str)
+ {
+ string.value = str.data();
+ string.size = str.size();
+ }
+
+ void set_string(WStringRef str)
+ {
+ wstring.value = str.data();
+ wstring.size = str.size();
+ }
+
+ // Formats an argument of a custom type, such as a user-defined class.
+ template<typename T>
+ static void format_custom_arg(void *formatter, const void *arg, void *format_str_ptr)
+ {
+ format_arg(*static_cast<Formatter *>(formatter), *static_cast<const Char **>(format_str_ptr), *static_cast<const T *>(arg));
+ }
+
+public:
+ MakeValue() {}
+
+#define FMT_MAKE_VALUE_(Type, field, TYPE, rhs) \
+ MakeValue(Type value) \
+ { \
+ field = rhs; \
+ } \
+ static uint64_t type(Type) \
+ { \
+ return Arg::TYPE; \
+ }
+
+#define FMT_MAKE_VALUE(Type, field, TYPE) FMT_MAKE_VALUE_(Type, field, TYPE, value)
+
+ FMT_MAKE_VALUE(bool, int_value, BOOL)
+ FMT_MAKE_VALUE(short, int_value, INT)
+ FMT_MAKE_VALUE(unsigned short, uint_value, UINT)
+ FMT_MAKE_VALUE(int, int_value, INT)
+ FMT_MAKE_VALUE(unsigned, uint_value, UINT)
+
+ MakeValue(long value)
+ {
+ // To minimize the number of types we need to deal with, long is
+ // translated either to int or to long long depending on its size.
+ if (const_check(sizeof(long) == sizeof(int)))
+ int_value = static_cast<int>(value);
+ else
+ long_long_value = value;
+ }
+ static uint64_t type(long)
+ {
+ return sizeof(long) == sizeof(int) ? Arg::INT : Arg::LONG_LONG;
+ }
+
+ MakeValue(unsigned long value)
+ {
+ if (const_check(sizeof(unsigned long) == sizeof(unsigned)))
+ uint_value = static_cast<unsigned>(value);
+ else
+ ulong_long_value = value;
+ }
+ static uint64_t type(unsigned long)
+ {
+ return sizeof(unsigned long) == sizeof(unsigned) ? Arg::UINT : Arg::ULONG_LONG;
+ }
+
+ FMT_MAKE_VALUE(LongLong, long_long_value, LONG_LONG)
+ FMT_MAKE_VALUE(ULongLong, ulong_long_value, ULONG_LONG)
+ FMT_MAKE_VALUE(float, double_value, DOUBLE)
+ FMT_MAKE_VALUE(double, double_value, DOUBLE)
+ FMT_MAKE_VALUE(long double, long_double_value, LONG_DOUBLE)
+ FMT_MAKE_VALUE(signed char, int_value, INT)
+ FMT_MAKE_VALUE(unsigned char, uint_value, UINT)
+ FMT_MAKE_VALUE(char, int_value, CHAR)
+
+#if __cplusplus >= 201103L
+ template<typename T, typename = typename std::enable_if<std::is_enum<T>::value && ConvertToInt<T>::value>::type>
+ MakeValue(T value)
+ {
+ int_value = value;
+ }
+
+ template<typename T, typename = typename std::enable_if<std::is_enum<T>::value && ConvertToInt<T>::value>::type>
+ static uint64_t type(T)
+ {
+ return Arg::INT;
+ }
+#endif
+
+#if !defined(_MSC_VER) || defined(_NATIVE_WCHAR_T_DEFINED)
+ MakeValue(typename WCharHelper<wchar_t, Char>::Supported value)
+ {
+ int_value = value;
+ }
+ static uint64_t type(wchar_t)
+ {
+ return Arg::CHAR;
+ }
+#endif
+
+#define FMT_MAKE_STR_VALUE(Type, TYPE) \
+ MakeValue(Type value) \
+ { \
+ set_string(value); \
+ } \
+ static uint64_t type(Type) \
+ { \
+ return Arg::TYPE; \
+ }
+
+ FMT_MAKE_VALUE(char *, string.value, CSTRING)
+ FMT_MAKE_VALUE(const char *, string.value, CSTRING)
+ FMT_MAKE_VALUE(signed char *, sstring.value, CSTRING)
+ FMT_MAKE_VALUE(const signed char *, sstring.value, CSTRING)
+ FMT_MAKE_VALUE(unsigned char *, ustring.value, CSTRING)
+ FMT_MAKE_VALUE(const unsigned char *, ustring.value, CSTRING)
+ FMT_MAKE_STR_VALUE(const std::string &, STRING)
+#if FMT_HAS_STRING_VIEW
+ FMT_MAKE_STR_VALUE(const std::string_view &, STRING)
+#endif
+ FMT_MAKE_STR_VALUE(StringRef, STRING)
+ FMT_MAKE_VALUE_(CStringRef, string.value, CSTRING, value.c_str())
+
+#define FMT_MAKE_WSTR_VALUE(Type, TYPE) \
+ MakeValue(typename WCharHelper<Type, Char>::Supported value) \
+ { \
+ set_string(value); \
+ } \
+ static uint64_t type(Type) \
+ { \
+ return Arg::TYPE; \
+ }
+
+ FMT_MAKE_WSTR_VALUE(wchar_t *, WSTRING)
+ FMT_MAKE_WSTR_VALUE(const wchar_t *, WSTRING)
+ FMT_MAKE_WSTR_VALUE(const std::wstring &, WSTRING)
+#if FMT_HAS_STRING_VIEW
+ FMT_MAKE_WSTR_VALUE(const std::wstring_view &, WSTRING)
+#endif
+ FMT_MAKE_WSTR_VALUE(WStringRef, WSTRING)
+
+ FMT_MAKE_VALUE(void *, pointer, POINTER)
+ FMT_MAKE_VALUE(const void *, pointer, POINTER)
+
+ template<typename T>
+ MakeValue(const T &value, typename EnableIf<Not<ConvertToInt<T>::value>::value, int>::type = 0)
+ {
+ custom.value = &value;
+ custom.format = &format_custom_arg<T>;
+ }
+
+ template<typename T>
+ static typename EnableIf<Not<ConvertToInt<T>::value>::value, uint64_t>::type type(const T &)
+ {
+ return Arg::CUSTOM;
+ }
+
+ // Additional template param `Char_` is needed here because make_type always
+ // uses char.
+ template<typename Char_>
+ MakeValue(const NamedArg<Char_> &value)
+ {
+ pointer = &value;
+ }
+ template<typename Char_, typename T>
+ MakeValue(const NamedArgWithType<Char_, T> &value)
+ {
+ pointer = &value;
+ }
+
+ template<typename Char_>
+ static uint64_t type(const NamedArg<Char_> &)
+ {
+ return Arg::NAMED_ARG;
+ }
+ template<typename Char_, typename T>
+ static uint64_t type(const NamedArgWithType<Char_, T> &)
+ {
+ return Arg::NAMED_ARG;
+ }
+};
+
+template<typename Formatter>
+class MakeArg : public Arg
+{
+public:
+ MakeArg()
+ {
+ type = Arg::NONE;
+ }
+
+ template<typename T>
+ MakeArg(const T &value)
+ : Arg(MakeValue<Formatter>(value))
+ {
+ type = static_cast<Arg::Type>(MakeValue<Formatter>::type(value));
+ }
+};
+
+template<typename Char>
+struct NamedArg : Arg
+{
+ BasicStringRef<Char> name;
+
+ template<typename T>
+ NamedArg(BasicStringRef<Char> argname, const T &value)
+ : Arg(MakeArg<BasicFormatter<Char>>(value))
+ , name(argname)
+ {
+ }
+};
+
+template<typename Char, typename T>
+struct NamedArgWithType : NamedArg<Char>
+{
+ NamedArgWithType(BasicStringRef<Char> argname, const T &value)
+ : NamedArg<Char>(argname, value)
+ {
+ }
+};
+
+class RuntimeError : public std::runtime_error
+{
+protected:
+ RuntimeError()
+ : std::runtime_error("")
+ {
+ }
+ RuntimeError(const RuntimeError &rerr)
+ : std::runtime_error(rerr)
+ {
+ }
+ FMT_API ~RuntimeError() FMT_DTOR_NOEXCEPT FMT_OVERRIDE;
+};
+
+template<typename Char>
+class ArgMap;
+} // namespace internal
+
+/** An argument list. */
+class ArgList
+{
+private:
+ // To reduce compiled code size per formatting function call, types of first
+ // MAX_PACKED_ARGS arguments are passed in the types_ field.
+ uint64_t types_;
+ union
+ {
+ // If the number of arguments is less than MAX_PACKED_ARGS, the argument
+ // values are stored in values_, otherwise they are stored in args_.
+ // This is done to reduce compiled code size as storing larger objects
+ // may require more code (at least on x86-64) even if the same amount of
+ // data is actually copied to stack. It saves ~10% on the bloat test.
+ const internal::Value *values_;
+ const internal::Arg *args_;
+ };
+
+ internal::Arg::Type type(unsigned index) const
+ {
+ return type(types_, index);
+ }
+
+ template<typename Char>
+ friend class internal::ArgMap;
+
+public:
+ // Maximum number of arguments with packed types.
+ enum
+ {
+ MAX_PACKED_ARGS = 16
+ };
+
+ ArgList()
+ : types_(0)
+ {
+ }
+
+ ArgList(ULongLong types, const internal::Value *values)
+ : types_(types)
+ , values_(values)
+ {
+ }
+ ArgList(ULongLong types, const internal::Arg *args)
+ : types_(types)
+ , args_(args)
+ {
+ }
+
+ uint64_t types() const
+ {
+ return types_;
+ }
+
+ /** Returns the argument at specified index. */
+ internal::Arg operator[](unsigned index) const
+ {
+ using internal::Arg;
+ Arg arg;
+ bool use_values = type(MAX_PACKED_ARGS - 1) == Arg::NONE;
+ if (index < MAX_PACKED_ARGS)
+ {
+ Arg::Type arg_type = type(index);
+ internal::Value &val = arg;
+ if (arg_type != Arg::NONE)
+ val = use_values ? values_[index] : args_[index];
+ arg.type = arg_type;
+ return arg;
+ }
+ if (use_values)
+ {
+ // The index is greater than the number of arguments that can be stored
+ // in values, so return a "none" argument.
+ arg.type = Arg::NONE;
+ return arg;
+ }
+ for (unsigned i = MAX_PACKED_ARGS; i <= index; ++i)
+ {
+ if (args_[i].type == Arg::NONE)
+ return args_[i];
+ }
+ return args_[index];
+ }
+
+ static internal::Arg::Type type(uint64_t types, unsigned index)
+ {
+ unsigned shift = index * 4;
+ uint64_t mask = 0xf;
+ return static_cast<internal::Arg::Type>((types & (mask << shift)) >> shift);
+ }
+};
+
+#define FMT_DISPATCH(call) static_cast<Impl *>(this)->call
+
+/**
+ \rst
+ An argument visitor based on the `curiously recurring template pattern
+ <http://en.wikipedia.org/wiki/Curiously_recurring_template_pattern>`_.
+
+ To use `~fmt::ArgVisitor` define a subclass that implements some or all of the
+ visit methods with the same signatures as the methods in `~fmt::ArgVisitor`,
+ for example, `~fmt::ArgVisitor::visit_int()`.
+ Pass the subclass as the *Impl* template parameter. Then calling
+ `~fmt::ArgVisitor::visit` for some argument will dispatch to a visit method
+ specific to the argument type. For example, if the argument type is
+ ``double`` then the `~fmt::ArgVisitor::visit_double()` method of a subclass
+ will be called. If the subclass doesn't contain a method with this signature,
+ then a corresponding method of `~fmt::ArgVisitor` will be called.
+
+ **Example**::
+
+ class MyArgVisitor : public fmt::ArgVisitor<MyArgVisitor, void> {
+ public:
+ void visit_int(int value) { fmt::print("{}", value); }
+ void visit_double(double value) { fmt::print("{}", value ); }
+ };
+ \endrst
+ */
+template<typename Impl, typename Result>
+class ArgVisitor
+{
+private:
+ typedef internal::Arg Arg;
+
+public:
+ void report_unhandled_arg() {}
+
+ Result visit_unhandled_arg()
+ {
+ FMT_DISPATCH(report_unhandled_arg());
+ return Result();
+ }
+
+ /** Visits an ``int`` argument. **/
+ Result visit_int(int value)
+ {
+ return FMT_DISPATCH(visit_any_int(value));
+ }
+
+ /** Visits a ``long long`` argument. **/
+ Result visit_long_long(LongLong value)
+ {
+ return FMT_DISPATCH(visit_any_int(value));
+ }
+
+ /** Visits an ``unsigned`` argument. **/
+ Result visit_uint(unsigned value)
+ {
+ return FMT_DISPATCH(visit_any_int(value));
+ }
+
+ /** Visits an ``unsigned long long`` argument. **/
+ Result visit_ulong_long(ULongLong value)
+ {
+ return FMT_DISPATCH(visit_any_int(value));
+ }
+
+ /** Visits a ``bool`` argument. **/
+ Result visit_bool(bool value)
+ {
+ return FMT_DISPATCH(visit_any_int(value));
+ }
+
+ /** Visits a ``char`` or ``wchar_t`` argument. **/
+ Result visit_char(int value)
+ {
+ return FMT_DISPATCH(visit_any_int(value));
+ }
+
+ /** Visits an argument of any integral type. **/
+ template<typename T>
+ Result visit_any_int(T)
+ {
+ return FMT_DISPATCH(visit_unhandled_arg());
+ }
+
+ /** Visits a ``double`` argument. **/
+ Result visit_double(double value)
+ {
+ return FMT_DISPATCH(visit_any_double(value));
+ }
+
+ /** Visits a ``long double`` argument. **/
+ Result visit_long_double(long double value)
+ {
+ return FMT_DISPATCH(visit_any_double(value));
+ }
+
+ /** Visits a ``double`` or ``long double`` argument. **/
+ template<typename T>
+ Result visit_any_double(T)
+ {
+ return FMT_DISPATCH(visit_unhandled_arg());
+ }
+
+ /** Visits a null-terminated C string (``const char *``) argument. **/
+ Result visit_cstring(const char *)
+ {
+ return FMT_DISPATCH(visit_unhandled_arg());
+ }
+
+ /** Visits a string argument. **/
+ Result visit_string(Arg::StringValue<char>)
+ {
+ return FMT_DISPATCH(visit_unhandled_arg());
+ }
+
+ /** Visits a wide string argument. **/
+ Result visit_wstring(Arg::StringValue<wchar_t>)
+ {
+ return FMT_DISPATCH(visit_unhandled_arg());
+ }
+
+ /** Visits a pointer argument. **/
+ Result visit_pointer(const void *)
+ {
+ return FMT_DISPATCH(visit_unhandled_arg());
+ }
+
+ /** Visits an argument of a custom (user-defined) type. **/
+ Result visit_custom(Arg::CustomValue)
+ {
+ return FMT_DISPATCH(visit_unhandled_arg());
+ }
+
+ /**
+ \rst
+ Visits an argument dispatching to the appropriate visit method based on
+ the argument type. For example, if the argument type is ``double`` then
+ the `~fmt::ArgVisitor::visit_double()` method of the *Impl* class will be
+ called.
+ \endrst
+ */
+ Result visit(const Arg &arg)
+ {
+ switch (arg.type)
+ {
+ case Arg::NONE:
+ case Arg::NAMED_ARG:
+ FMT_ASSERT(false, "invalid argument type");
+ break;
+ case Arg::INT:
+ return FMT_DISPATCH(visit_int(arg.int_value));
+ case Arg::UINT:
+ return FMT_DISPATCH(visit_uint(arg.uint_value));
+ case Arg::LONG_LONG:
+ return FMT_DISPATCH(visit_long_long(arg.long_long_value));
+ case Arg::ULONG_LONG:
+ return FMT_DISPATCH(visit_ulong_long(arg.ulong_long_value));
+ case Arg::BOOL:
+ return FMT_DISPATCH(visit_bool(arg.int_value != 0));
+ case Arg::CHAR:
+ return FMT_DISPATCH(visit_char(arg.int_value));
+ case Arg::DOUBLE:
+ return FMT_DISPATCH(visit_double(arg.double_value));
+ case Arg::LONG_DOUBLE:
+ return FMT_DISPATCH(visit_long_double(arg.long_double_value));
+ case Arg::CSTRING:
+ return FMT_DISPATCH(visit_cstring(arg.string.value));
+ case Arg::STRING:
+ return FMT_DISPATCH(visit_string(arg.string));
+ case Arg::WSTRING:
+ return FMT_DISPATCH(visit_wstring(arg.wstring));
+ case Arg::POINTER:
+ return FMT_DISPATCH(visit_pointer(arg.pointer));
+ case Arg::CUSTOM:
+ return FMT_DISPATCH(visit_custom(arg.custom));
+ }
+ return Result();
+ }
+};
+
+enum Alignment
+{
+ ALIGN_DEFAULT,
+ ALIGN_LEFT,
+ ALIGN_RIGHT,
+ ALIGN_CENTER,
+ ALIGN_NUMERIC
+};
+
+// Flags.
+enum
+{
+ SIGN_FLAG = 1,
+ PLUS_FLAG = 2,
+ MINUS_FLAG = 4,
+ HASH_FLAG = 8,
+ CHAR_FLAG = 0x10 // Argument has char type - used in error reporting.
+};
+
+// An empty format specifier.
+struct EmptySpec
+{
+};
+
+// A type specifier.
+template<char TYPE>
+struct TypeSpec : EmptySpec
+{
+ Alignment align() const
+ {
+ return ALIGN_DEFAULT;
+ }
+ unsigned width() const
+ {
+ return 0;
+ }
+ int precision() const
+ {
+ return -1;
+ }
+ bool flag(unsigned) const
+ {
+ return false;
+ }
+ char type() const
+ {
+ return TYPE;
+ }
+ char type_prefix() const
+ {
+ return TYPE;
+ }
+ char fill() const
+ {
+ return ' ';
+ }
+};
+
+// A width specifier.
+struct WidthSpec
+{
+ unsigned width_;
+ // Fill is always wchar_t and cast to char if necessary to avoid having
+ // two specialization of WidthSpec and its subclasses.
+ wchar_t fill_;
+
+ WidthSpec(unsigned width, wchar_t fill)
+ : width_(width)
+ , fill_(fill)
+ {
+ }
+
+ unsigned width() const
+ {
+ return width_;
+ }
+ wchar_t fill() const
+ {
+ return fill_;
+ }
+};
+
+// An alignment specifier.
+struct AlignSpec : WidthSpec
+{
+ Alignment align_;
+
+ AlignSpec(unsigned width, wchar_t fill, Alignment align = ALIGN_DEFAULT)
+ : WidthSpec(width, fill)
+ , align_(align)
+ {
+ }
+
+ Alignment align() const
+ {
+ return align_;
+ }
+
+ int precision() const
+ {
+ return -1;
+ }
+};
+
+// An alignment and type specifier.
+template<char TYPE>
+struct AlignTypeSpec : AlignSpec
+{
+ AlignTypeSpec(unsigned width, wchar_t fill)
+ : AlignSpec(width, fill)
+ {
+ }
+
+ bool flag(unsigned) const
+ {
+ return false;
+ }
+ char type() const
+ {
+ return TYPE;
+ }
+ char type_prefix() const
+ {
+ return TYPE;
+ }
+};
+
+// A full format specifier.
+struct FormatSpec : AlignSpec
+{
+ unsigned flags_;
+ int precision_;
+ char type_;
+
+ FormatSpec(unsigned width = 0, char type = 0, wchar_t fill = ' ')
+ : AlignSpec(width, fill)
+ , flags_(0)
+ , precision_(-1)
+ , type_(type)
+ {
+ }
+
+ bool flag(unsigned f) const
+ {
+ return (flags_ & f) != 0;
+ }
+ int precision() const
+ {
+ return precision_;
+ }
+ char type() const
+ {
+ return type_;
+ }
+ char type_prefix() const
+ {
+ return type_;
+ }
+};
+
+// An integer format specifier.
+template<typename T, typename SpecT = TypeSpec<0>, typename Char = char>
+class IntFormatSpec : public SpecT
+{
+private:
+ T value_;
+
+public:
+ IntFormatSpec(T val, const SpecT &spec = SpecT())
+ : SpecT(spec)
+ , value_(val)
+ {
+ }
+
+ T value() const
+ {
+ return value_;
+ }
+};
+
+// A string format specifier.
+template<typename Char>
+class StrFormatSpec : public AlignSpec
+{
+private:
+ const Char *str_;
+
+public:
+ template<typename FillChar>
+ StrFormatSpec(const Char *str, unsigned width, FillChar fill)
+ : AlignSpec(width, fill)
+ , str_(str)
+ {
+ internal::CharTraits<Char>::convert(FillChar());
+ }
+
+ const Char *str() const
+ {
+ return str_;
+ }
+};
+
+/**
+ Returns an integer format specifier to format the value in base 2.
+ */
+IntFormatSpec<int, TypeSpec<'b'>> bin(int value);
+
+/**
+ Returns an integer format specifier to format the value in base 8.
+ */
+IntFormatSpec<int, TypeSpec<'o'>> oct(int value);
+
+/**
+ Returns an integer format specifier to format the value in base 16 using
+ lower-case letters for the digits above 9.
+ */
+IntFormatSpec<int, TypeSpec<'x'>> hex(int value);
+
+/**
+ Returns an integer formatter format specifier to format in base 16 using
+ upper-case letters for the digits above 9.
+ */
+IntFormatSpec<int, TypeSpec<'X'>> hexu(int value);
+
+/**
+ \rst
+ Returns an integer format specifier to pad the formatted argument with the
+ fill character to the specified width using the default (right) numeric
+ alignment.
+
+ **Example**::
+
+ MemoryWriter out;
+ out << pad(hex(0xcafe), 8, '0');
+ // out.str() == "0000cafe"
+
+ \endrst
+ */
+template<char TYPE_CODE, typename Char>
+IntFormatSpec<int, AlignTypeSpec<TYPE_CODE>, Char> pad(int value, unsigned width, Char fill = ' ');
+
+#define FMT_DEFINE_INT_FORMATTERS(TYPE) \
+ inline IntFormatSpec<TYPE, TypeSpec<'b'>> bin(TYPE value) \
+ { \
+ return IntFormatSpec<TYPE, TypeSpec<'b'>>(value, TypeSpec<'b'>()); \
+ } \
+ \
+ inline IntFormatSpec<TYPE, TypeSpec<'o'>> oct(TYPE value) \
+ { \
+ return IntFormatSpec<TYPE, TypeSpec<'o'>>(value, TypeSpec<'o'>()); \
+ } \
+ \
+ inline IntFormatSpec<TYPE, TypeSpec<'x'>> hex(TYPE value) \
+ { \
+ return IntFormatSpec<TYPE, TypeSpec<'x'>>(value, TypeSpec<'x'>()); \
+ } \
+ \
+ inline IntFormatSpec<TYPE, TypeSpec<'X'>> hexu(TYPE value) \
+ { \
+ return IntFormatSpec<TYPE, TypeSpec<'X'>>(value, TypeSpec<'X'>()); \
+ } \
+ \
+ template<char TYPE_CODE> \
+ inline IntFormatSpec<TYPE, AlignTypeSpec<TYPE_CODE>> pad(IntFormatSpec<TYPE, TypeSpec<TYPE_CODE>> f, unsigned width) \
+ { \
+ return IntFormatSpec<TYPE, AlignTypeSpec<TYPE_CODE>>(f.value(), AlignTypeSpec<TYPE_CODE>(width, ' ')); \
+ } \
+ \
+ /* For compatibility with older compilers we provide two overloads for pad, */ \
+ /* one that takes a fill character and one that doesn't. In the future this */ \
+ /* can be replaced with one overload making the template argument Char */ \
+ /* default to char (C++11). */ \
+ template<char TYPE_CODE, typename Char> \
+ inline IntFormatSpec<TYPE, AlignTypeSpec<TYPE_CODE>, Char> pad( \
+ IntFormatSpec<TYPE, TypeSpec<TYPE_CODE>, Char> f, unsigned width, Char fill) \
+ { \
+ return IntFormatSpec<TYPE, AlignTypeSpec<TYPE_CODE>, Char>(f.value(), AlignTypeSpec<TYPE_CODE>(width, fill)); \
+ } \
+ \
+ inline IntFormatSpec<TYPE, AlignTypeSpec<0>> pad(TYPE value, unsigned width) \
+ { \
+ return IntFormatSpec<TYPE, AlignTypeSpec<0>>(value, AlignTypeSpec<0>(width, ' ')); \
+ } \
+ \
+ template<typename Char> \
+ inline IntFormatSpec<TYPE, AlignTypeSpec<0>, Char> pad(TYPE value, unsigned width, Char fill) \
+ { \
+ return IntFormatSpec<TYPE, AlignTypeSpec<0>, Char>(value, AlignTypeSpec<0>(width, fill)); \
+ }
+
+FMT_DEFINE_INT_FORMATTERS(int)
+FMT_DEFINE_INT_FORMATTERS(long)
+FMT_DEFINE_INT_FORMATTERS(unsigned)
+FMT_DEFINE_INT_FORMATTERS(unsigned long)
+FMT_DEFINE_INT_FORMATTERS(LongLong)
+FMT_DEFINE_INT_FORMATTERS(ULongLong)
+
+/**
+ \rst
+ Returns a string formatter that pads the formatted argument with the fill
+ character to the specified width using the default (left) string alignment.
+
+ **Example**::
+
+ std::string s = str(MemoryWriter() << pad("abc", 8));
+ // s == "abc "
+
+ \endrst
+ */
+template<typename Char>
+inline StrFormatSpec<Char> pad(const Char *str, unsigned width, Char fill = ' ')
+{
+ return StrFormatSpec<Char>(str, width, fill);
+}
+
+inline StrFormatSpec<wchar_t> pad(const wchar_t *str, unsigned width, char fill = ' ')
+{
+ return StrFormatSpec<wchar_t>(str, width, fill);
+}
+
+namespace internal {
+
+template<typename Char>
+class ArgMap
+{
+private:
+ typedef std::vector<std::pair<fmt::BasicStringRef<Char>, internal::Arg>> MapType;
+ typedef typename MapType::value_type Pair;
+
+ MapType map_;
+
+public:
+ void init(const ArgList &args);
+
+ const internal::Arg *find(const fmt::BasicStringRef<Char> &name) const
+ {
+ // The list is unsorted, so just return the first matching name.
+ for (typename MapType::const_iterator it = map_.begin(), end = map_.end(); it != end; ++it)
+ {
+ if (it->first == name)
+ return &it->second;
+ }
+ return FMT_NULL;
+ }
+};
+
+template<typename Char>
+void ArgMap<Char>::init(const ArgList &args)
+{
+ if (!map_.empty())
+ return;
+ typedef internal::NamedArg<Char> NamedArg;
+ const NamedArg *named_arg = FMT_NULL;
+ bool use_values = args.type(ArgList::MAX_PACKED_ARGS - 1) == internal::Arg::NONE;
+ if (use_values)
+ {
+ for (unsigned i = 0; /*nothing*/; ++i)
+ {
+ internal::Arg::Type arg_type = args.type(i);
+ switch (arg_type)
+ {
+ case internal::Arg::NONE:
+ return;
+ case internal::Arg::NAMED_ARG:
+ named_arg = static_cast<const NamedArg *>(args.values_[i].pointer);
+ map_.push_back(Pair(named_arg->name, *named_arg));
+ break;
+ default:
+ /*nothing*/
+ ;
+ }
+ }
+ return;
+ }
+ for (unsigned i = 0; i != ArgList::MAX_PACKED_ARGS; ++i)
+ {
+ internal::Arg::Type arg_type = args.type(i);
+ if (arg_type == internal::Arg::NAMED_ARG)
+ {
+ named_arg = static_cast<const NamedArg *>(args.args_[i].pointer);
+ map_.push_back(Pair(named_arg->name, *named_arg));
+ }
+ }
+ for (unsigned i = ArgList::MAX_PACKED_ARGS; /*nothing*/; ++i)
+ {
+ switch (args.args_[i].type)
+ {
+ case internal::Arg::NONE:
+ return;
+ case internal::Arg::NAMED_ARG:
+ named_arg = static_cast<const NamedArg *>(args.args_[i].pointer);
+ map_.push_back(Pair(named_arg->name, *named_arg));
+ break;
+ default:
+ /*nothing*/
+ ;
+ }
+ }
+}
+
+template<typename Impl, typename Char, typename Spec = fmt::FormatSpec>
+class ArgFormatterBase : public ArgVisitor<Impl, void>
+{
+private:
+ BasicWriter<Char> &writer_;
+ Spec &spec_;
+
+ FMT_DISALLOW_COPY_AND_ASSIGN(ArgFormatterBase);
+
+ void write_pointer(const void *p)
+ {
+ spec_.flags_ = HASH_FLAG;
+ spec_.type_ = 'x';
+ writer_.write_int(reinterpret_cast<uintptr_t>(p), spec_);
+ }
+
+ // workaround MSVC two-phase lookup issue
+ typedef internal::Arg Arg;
+
+protected:
+ BasicWriter<Char> &writer()
+ {
+ return writer_;
+ }
+ Spec &spec()
+ {
+ return spec_;
+ }
+
+ void write(bool value)
+ {
+ const char *str_value = value ? "true" : "false";
+ Arg::StringValue<char> str = {str_value, std::strlen(str_value)};
+ writer_.write_str(str, spec_);
+ }
+
+ void write(const char *value)
+ {
+ Arg::StringValue<char> str = {value, value ? std::strlen(value) : 0};
+ writer_.write_str(str, spec_);
+ }
+
+public:
+ typedef Spec SpecType;
+
+ ArgFormatterBase(BasicWriter<Char> &w, Spec &s)
+ : writer_(w)
+ , spec_(s)
+ {
+ }
+
+ template<typename T>
+ void visit_any_int(T value)
+ {
+ writer_.write_int(value, spec_);
+ }
+
+ template<typename T>
+ void visit_any_double(T value)
+ {
+ writer_.write_double(value, spec_);
+ }
+
+ void visit_bool(bool value)
+ {
+ if (spec_.type_)
+ {
+ visit_any_int(value);
+ return;
+ }
+ write(value);
+ }
+
+ void visit_char(int value)
+ {
+ if (spec_.type_ && spec_.type_ != 'c')
+ {
+ spec_.flags_ |= CHAR_FLAG;
+ writer_.write_int(value, spec_);
+ return;
+ }
+ if (spec_.align_ == ALIGN_NUMERIC || spec_.flags_ != 0)
+ FMT_THROW(FormatError("invalid format specifier for char"));
+ typedef typename BasicWriter<Char>::CharPtr CharPtr;
+ Char fill = internal::CharTraits<Char>::cast(spec_.fill());
+ CharPtr out = CharPtr();
+ const unsigned CHAR_SIZE = 1;
+ if (spec_.width_ > CHAR_SIZE)
+ {
+ out = writer_.grow_buffer(spec_.width_);
+ if (spec_.align_ == ALIGN_RIGHT)
+ {
+ std::uninitialized_fill_n(out, spec_.width_ - CHAR_SIZE, fill);
+ out += spec_.width_ - CHAR_SIZE;
+ }
+ else if (spec_.align_ == ALIGN_CENTER)
+ {
+ out = writer_.fill_padding(out, spec_.width_, internal::const_check(CHAR_SIZE), fill);
+ }
+ else
+ {
+ std::uninitialized_fill_n(out + CHAR_SIZE, spec_.width_ - CHAR_SIZE, fill);
+ }
+ }
+ else
+ {
+ out = writer_.grow_buffer(CHAR_SIZE);
+ }
+ *out = internal::CharTraits<Char>::cast(value);
+ }
+
+ void visit_cstring(const char *value)
+ {
+ if (spec_.type_ == 'p')
+ return write_pointer(value);
+ write(value);
+ }
+
+ // Qualification with "internal" here and below is a workaround for nvcc.
+ void visit_string(internal::Arg::StringValue<char> value)
+ {
+ writer_.write_str(value, spec_);
+ }
+
+ using ArgVisitor<Impl, void>::visit_wstring;
+
+ void visit_wstring(internal::Arg::StringValue<Char> value)
+ {
+ writer_.write_str(value, spec_);
+ }
+
+ void visit_pointer(const void *value)
+ {
+ if (spec_.type_ && spec_.type_ != 'p')
+ report_unknown_type(spec_.type_, "pointer");
+ write_pointer(value);
+ }
+};
+
+class FormatterBase
+{
+private:
+ ArgList args_;
+ int next_arg_index_;
+
+ // Returns the argument with specified index.
+ FMT_API Arg do_get_arg(unsigned arg_index, const char *&error);
+
+protected:
+ const ArgList &args() const
+ {
+ return args_;
+ }
+
+ explicit FormatterBase(const ArgList &args)
+ {
+ args_ = args;
+ next_arg_index_ = 0;
+ }
+
+ // Returns the next argument.
+ Arg next_arg(const char *&error)
+ {
+ if (next_arg_index_ >= 0)
+ return do_get_arg(internal::to_unsigned(next_arg_index_++), error);
+ error = "cannot switch from manual to automatic argument indexing";
+ return Arg();
+ }
+
+ // Checks if manual indexing is used and returns the argument with
+ // specified index.
+ Arg get_arg(unsigned arg_index, const char *&error)
+ {
+ return check_no_auto_index(error) ? do_get_arg(arg_index, error) : Arg();
+ }
+
+ bool check_no_auto_index(const char *&error)
+ {
+ if (next_arg_index_ > 0)
+ {
+ error = "cannot switch from automatic to manual argument indexing";
+ return false;
+ }
+ next_arg_index_ = -1;
+ return true;
+ }
+
+ template<typename Char>
+ void write(BasicWriter<Char> &w, const Char *start, const Char *end)
+ {
+ if (start != end)
+ w << BasicStringRef<Char>(start, internal::to_unsigned(end - start));
+ }
+};
+} // namespace internal
+
+/**
+ \rst
+ An argument formatter based on the `curiously recurring template pattern
+ <http://en.wikipedia.org/wiki/Curiously_recurring_template_pattern>`_.
+
+ To use `~fmt::BasicArgFormatter` define a subclass that implements some or
+ all of the visit methods with the same signatures as the methods in
+ `~fmt::ArgVisitor`, for example, `~fmt::ArgVisitor::visit_int()`.
+ Pass the subclass as the *Impl* template parameter. When a formatting
+ function processes an argument, it will dispatch to a visit method
+ specific to the argument type. For example, if the argument type is
+ ``double`` then the `~fmt::ArgVisitor::visit_double()` method of a subclass
+ will be called. If the subclass doesn't contain a method with this signature,
+ then a corresponding method of `~fmt::BasicArgFormatter` or its superclass
+ will be called.
+ \endrst
+ */
+template<typename Impl, typename Char, typename Spec = fmt::FormatSpec>
+class BasicArgFormatter : public internal::ArgFormatterBase<Impl, Char, Spec>
+{
+private:
+ BasicFormatter<Char, Impl> &formatter_;
+ const Char *format_;
+
+public:
+ /**
+ \rst
+ Constructs an argument formatter object.
+ *formatter* is a reference to the main formatter object, *spec* contains
+ format specifier information for standard argument types, and *fmt* points
+ to the part of the format string being parsed for custom argument types.
+ \endrst
+ */
+ BasicArgFormatter(BasicFormatter<Char, Impl> &formatter, Spec &spec, const Char *fmt)
+ : internal::ArgFormatterBase<Impl, Char, Spec>(formatter.writer(), spec)
+ , formatter_(formatter)
+ , format_(fmt)
+ {
+ }
+
+ /** Formats an argument of a custom (user-defined) type. */
+ void visit_custom(internal::Arg::CustomValue c)
+ {
+ c.format(&formatter_, c.value, &format_);
+ }
+};
+
+/** The default argument formatter. */
+template<typename Char>
+class ArgFormatter : public BasicArgFormatter<ArgFormatter<Char>, Char, FormatSpec>
+{
+public:
+ /** Constructs an argument formatter object. */
+ ArgFormatter(BasicFormatter<Char> &formatter, FormatSpec &spec, const Char *fmt)
+ : BasicArgFormatter<ArgFormatter<Char>, Char, FormatSpec>(formatter, spec, fmt)
+ {
+ }
+};
+
+/** This template formats data and writes the output to a writer. */
+template<typename CharType, typename ArgFormatter>
+class BasicFormatter : private internal::FormatterBase
+{
+public:
+ /** The character type for the output. */
+ typedef CharType Char;
+
+private:
+ BasicWriter<Char> &writer_;
+ internal::ArgMap<Char> map_;
+
+ FMT_DISALLOW_COPY_AND_ASSIGN(BasicFormatter);
+
+ using internal::FormatterBase::get_arg;
+
+ // Checks if manual indexing is used and returns the argument with
+ // specified name.
+ internal::Arg get_arg(BasicStringRef<Char> arg_name, const char *&error);
+
+ // Parses argument index and returns corresponding argument.
+ internal::Arg parse_arg_index(const Char *&s);
+
+ // Parses argument name and returns corresponding argument.
+ internal::Arg parse_arg_name(const Char *&s);
+
+public:
+ /**
+ \rst
+ Constructs a ``BasicFormatter`` object. References to the arguments and
+ the writer are stored in the formatter object so make sure they have
+ appropriate lifetimes.
+ \endrst
+ */
+ BasicFormatter(const ArgList &args, BasicWriter<Char> &w)
+ : internal::FormatterBase(args)
+ , writer_(w)
+ {
+ }
+
+ /** Returns a reference to the writer associated with this formatter. */
+ BasicWriter<Char> &writer()
+ {
+ return writer_;
+ }
+
+ /** Formats stored arguments and writes the output to the writer. */
+ void format(BasicCStringRef<Char> format_str);
+
+ // Formats a single argument and advances format_str, a format string pointer.
+ const Char *format(const Char *&format_str, const internal::Arg &arg);
+};
+
+// Generates a comma-separated list with results of applying f to
+// numbers 0..n-1.
+#define FMT_GEN(n, f) FMT_GEN##n(f)
+#define FMT_GEN1(f) f(0)
+#define FMT_GEN2(f) FMT_GEN1(f), f(1)
+#define FMT_GEN3(f) FMT_GEN2(f), f(2)
+#define FMT_GEN4(f) FMT_GEN3(f), f(3)
+#define FMT_GEN5(f) FMT_GEN4(f), f(4)
+#define FMT_GEN6(f) FMT_GEN5(f), f(5)
+#define FMT_GEN7(f) FMT_GEN6(f), f(6)
+#define FMT_GEN8(f) FMT_GEN7(f), f(7)
+#define FMT_GEN9(f) FMT_GEN8(f), f(8)
+#define FMT_GEN10(f) FMT_GEN9(f), f(9)
+#define FMT_GEN11(f) FMT_GEN10(f), f(10)
+#define FMT_GEN12(f) FMT_GEN11(f), f(11)
+#define FMT_GEN13(f) FMT_GEN12(f), f(12)
+#define FMT_GEN14(f) FMT_GEN13(f), f(13)
+#define FMT_GEN15(f) FMT_GEN14(f), f(14)
+
+namespace internal {
+inline uint64_t make_type()
+{
+ return 0;
+}
+
+template<typename T>
+inline uint64_t make_type(const T &arg)
+{
+ return MakeValue<BasicFormatter<char>>::type(arg);
+}
+
+template<std::size_t N, bool /*IsPacked*/ = (N < ArgList::MAX_PACKED_ARGS)>
+struct ArgArray;
+
+template<std::size_t N>
+struct ArgArray<N, true /*IsPacked*/>
+{
+ // '+' is used to silence GCC -Wduplicated-branches warning.
+ typedef Value Type[N > 0 ? N : +1];
+
+ template<typename Formatter, typename T>
+ static Value make(const T &value)
+ {
+#ifdef __clang__
+ Value result = MakeValue<Formatter>(value);
+ // Workaround a bug in Apple LLVM version 4.2 (clang-425.0.28) of clang:
+ // https://github.com/fmtlib/fmt/issues/276
+ (void)result.custom.format;
+ return result;
+#else
+ return MakeValue<Formatter>(value);
+#endif
+ }
+};
+
+template<std::size_t N>
+struct ArgArray<N, false /*IsPacked*/>
+{
+ typedef Arg Type[N + 1]; // +1 for the list end Arg::NONE
+
+ template<typename Formatter, typename T>
+ static Arg make(const T &value)
+ {
+ return MakeArg<Formatter>(value);
+ }
+};
+
+#if FMT_USE_VARIADIC_TEMPLATES
+template<typename Arg, typename... Args>
+inline uint64_t make_type(const Arg &first, const Args &... tail)
+{
+ return make_type(first) | (make_type(tail...) << 4);
+}
+
+#else
+
+struct ArgType
+{
+ uint64_t type;
+
+ ArgType()
+ : type(0)
+ {
+ }
+
+ template<typename T>
+ ArgType(const T &arg)
+ : type(make_type(arg))
+ {
+ }
+};
+
+#define FMT_ARG_TYPE_DEFAULT(n) ArgType t##n = ArgType()
+
+inline uint64_t make_type(FMT_GEN15(FMT_ARG_TYPE_DEFAULT))
+{
+ return t0.type | (t1.type << 4) | (t2.type << 8) | (t3.type << 12) | (t4.type << 16) | (t5.type << 20) | (t6.type << 24) |
+ (t7.type << 28) | (t8.type << 32) | (t9.type << 36) | (t10.type << 40) | (t11.type << 44) | (t12.type << 48) | (t13.type << 52) |
+ (t14.type << 56);
+}
+#endif
+} // namespace internal
+
+#define FMT_MAKE_TEMPLATE_ARG(n) typename T##n
+#define FMT_MAKE_ARG_TYPE(n) T##n
+#define FMT_MAKE_ARG(n) const T##n &v##n
+#define FMT_ASSIGN_char(n) arr[n] = fmt::internal::MakeValue<fmt::BasicFormatter<char>>(v##n)
+#define FMT_ASSIGN_wchar_t(n) arr[n] = fmt::internal::MakeValue<fmt::BasicFormatter<wchar_t>>(v##n)
+
+#if FMT_USE_VARIADIC_TEMPLATES
+// Defines a variadic function returning void.
+#define FMT_VARIADIC_VOID(func, arg_type) \
+ template<typename... Args> \
+ void func(arg_type arg0, const Args &... args) \
+ { \
+ typedef fmt::internal::ArgArray<sizeof...(Args)> ArgArray; \
+ typename ArgArray::Type array{ArgArray::template make<fmt::BasicFormatter<Char>>(args)...}; \
+ func(arg0, fmt::ArgList(fmt::internal::make_type(args...), array)); \
+ }
+
+// Defines a variadic constructor.
+#define FMT_VARIADIC_CTOR(ctor, func, arg0_type, arg1_type) \
+ template<typename... Args> \
+ ctor(arg0_type arg0, arg1_type arg1, const Args &... args) \
+ { \
+ typedef fmt::internal::ArgArray<sizeof...(Args)> ArgArray; \
+ typename ArgArray::Type array{ArgArray::template make<fmt::BasicFormatter<Char>>(args)...}; \
+ func(arg0, arg1, fmt::ArgList(fmt::internal::make_type(args...), array)); \
+ }
+
+#else
+
+#define FMT_MAKE_REF(n) fmt::internal::MakeValue<fmt::BasicFormatter<Char>>(v##n)
+#define FMT_MAKE_REF2(n) v##n
+
+// Defines a wrapper for a function taking one argument of type arg_type
+// and n additional arguments of arbitrary types.
+#define FMT_WRAP1(func, arg_type, n) \
+ template<FMT_GEN(n, FMT_MAKE_TEMPLATE_ARG)> \
+ inline void func(arg_type arg1, FMT_GEN(n, FMT_MAKE_ARG)) \
+ { \
+ const fmt::internal::ArgArray<n>::Type array = {FMT_GEN(n, FMT_MAKE_REF)}; \
+ func(arg1, fmt::ArgList(fmt::internal::make_type(FMT_GEN(n, FMT_MAKE_REF2)), array)); \
+ }
+
+// Emulates a variadic function returning void on a pre-C++11 compiler.
+#define FMT_VARIADIC_VOID(func, arg_type) \
+ inline void func(arg_type arg) \
+ { \
+ func(arg, fmt::ArgList()); \
+ } \
+ FMT_WRAP1(func, arg_type, 1) \
+ FMT_WRAP1(func, arg_type, 2) \
+ FMT_WRAP1(func, arg_type, 3) \
+ FMT_WRAP1(func, arg_type, 4) \
+ FMT_WRAP1(func, arg_type, 5) \
+ FMT_WRAP1(func, arg_type, 6) \
+ FMT_WRAP1(func, arg_type, 7) FMT_WRAP1(func, arg_type, 8) FMT_WRAP1(func, arg_type, 9) FMT_WRAP1(func, arg_type, 10)
+
+#define FMT_CTOR(ctor, func, arg0_type, arg1_type, n) \
+ template<FMT_GEN(n, FMT_MAKE_TEMPLATE_ARG)> \
+ ctor(arg0_type arg0, arg1_type arg1, FMT_GEN(n, FMT_MAKE_ARG)) \
+ { \
+ const fmt::internal::ArgArray<n>::Type array = {FMT_GEN(n, FMT_MAKE_REF)}; \
+ func(arg0, arg1, fmt::ArgList(fmt::internal::make_type(FMT_GEN(n, FMT_MAKE_REF2)), array)); \
+ }
+
+// Emulates a variadic constructor on a pre-C++11 compiler.
+#define FMT_VARIADIC_CTOR(ctor, func, arg0_type, arg1_type) \
+ FMT_CTOR(ctor, func, arg0_type, arg1_type, 1) \
+ FMT_CTOR(ctor, func, arg0_type, arg1_type, 2) \
+ FMT_CTOR(ctor, func, arg0_type, arg1_type, 3) \
+ FMT_CTOR(ctor, func, arg0_type, arg1_type, 4) \
+ FMT_CTOR(ctor, func, arg0_type, arg1_type, 5) \
+ FMT_CTOR(ctor, func, arg0_type, arg1_type, 6) \
+ FMT_CTOR(ctor, func, arg0_type, arg1_type, 7) \
+ FMT_CTOR(ctor, func, arg0_type, arg1_type, 8) \
+ FMT_CTOR(ctor, func, arg0_type, arg1_type, 9) \
+ FMT_CTOR(ctor, func, arg0_type, arg1_type, 10)
+#endif
+
+// Generates a comma-separated list with results of applying f to pairs
+// (argument, index).
+#define FMT_FOR_EACH1(f, x0) f(x0, 0)
+#define FMT_FOR_EACH2(f, x0, x1) FMT_FOR_EACH1(f, x0), f(x1, 1)
+#define FMT_FOR_EACH3(f, x0, x1, x2) FMT_FOR_EACH2(f, x0, x1), f(x2, 2)
+#define FMT_FOR_EACH4(f, x0, x1, x2, x3) FMT_FOR_EACH3(f, x0, x1, x2), f(x3, 3)
+#define FMT_FOR_EACH5(f, x0, x1, x2, x3, x4) FMT_FOR_EACH4(f, x0, x1, x2, x3), f(x4, 4)
+#define FMT_FOR_EACH6(f, x0, x1, x2, x3, x4, x5) FMT_FOR_EACH5(f, x0, x1, x2, x3, x4), f(x5, 5)
+#define FMT_FOR_EACH7(f, x0, x1, x2, x3, x4, x5, x6) FMT_FOR_EACH6(f, x0, x1, x2, x3, x4, x5), f(x6, 6)
+#define FMT_FOR_EACH8(f, x0, x1, x2, x3, x4, x5, x6, x7) FMT_FOR_EACH7(f, x0, x1, x2, x3, x4, x5, x6), f(x7, 7)
+#define FMT_FOR_EACH9(f, x0, x1, x2, x3, x4, x5, x6, x7, x8) FMT_FOR_EACH8(f, x0, x1, x2, x3, x4, x5, x6, x7), f(x8, 8)
+#define FMT_FOR_EACH10(f, x0, x1, x2, x3, x4, x5, x6, x7, x8, x9) FMT_FOR_EACH9(f, x0, x1, x2, x3, x4, x5, x6, x7, x8), f(x9, 9)
+
+/**
+ An error returned by an operating system or a language runtime,
+ for example a file opening error.
+*/
+class SystemError : public internal::RuntimeError
+{
+private:
+ FMT_API void init(int err_code, CStringRef format_str, ArgList args);
+
+protected:
+ int error_code_;
+
+ typedef char Char; // For FMT_VARIADIC_CTOR.
+
+ SystemError() {}
+
+public:
+ /**
+ \rst
+ Constructs a :class:`fmt::SystemError` object with a description
+ formatted with `fmt::format_system_error`. *message* and additional
+ arguments passed into the constructor are formatted similarly to
+ `fmt::format`.
+
+ **Example**::
+
+ // This throws a SystemError with the description
+ // cannot open file 'madeup': No such file or directory
+ // or similar (system message may vary).
+ const char *filename = "madeup";
+ std::FILE *file = std::fopen(filename, "r");
+ if (!file)
+ throw fmt::SystemError(errno, "cannot open file '{}'", filename);
+ \endrst
+ */
+ SystemError(int error_code, CStringRef message)
+ {
+ init(error_code, message, ArgList());
+ }
+ FMT_DEFAULTED_COPY_CTOR(SystemError)
+ FMT_VARIADIC_CTOR(SystemError, init, int, CStringRef)
+
+ FMT_API ~SystemError() FMT_DTOR_NOEXCEPT FMT_OVERRIDE;
+
+ int error_code() const
+ {
+ return error_code_;
+ }
+};
+
+/**
+ \rst
+ Formats an error returned by an operating system or a language runtime,
+ for example a file opening error, and writes it to *out* in the following
+ form:
+
+ .. parsed-literal::
+ *<message>*: *<system-message>*
+
+ where *<message>* is the passed message and *<system-message>* is
+ the system message corresponding to the error code.
+ *error_code* is a system error code as given by ``errno``.
+ If *error_code* is not a valid error code such as -1, the system message
+ may look like "Unknown error -1" and is platform-dependent.
+ \endrst
+ */
+FMT_API void format_system_error(fmt::Writer &out, int error_code, fmt::StringRef message) FMT_NOEXCEPT;
+
+/**
+ \rst
+ This template provides operations for formatting and writing data into
+ a character stream. The output is stored in a buffer provided by a subclass
+ such as :class:`fmt::BasicMemoryWriter`.
+
+ You can use one of the following typedefs for common character types:
+
+ +---------+----------------------+
+ | Type | Definition |
+ +=========+======================+
+ | Writer | BasicWriter<char> |
+ +---------+----------------------+
+ | WWriter | BasicWriter<wchar_t> |
+ +---------+----------------------+
+
+ \endrst
+ */
+template<typename Char>
+class BasicWriter
+{
+private:
+ // Output buffer.
+ Buffer<Char> &buffer_;
+
+ FMT_DISALLOW_COPY_AND_ASSIGN(BasicWriter);
+
+ typedef typename internal::CharTraits<Char>::CharPtr CharPtr;
+
+#if FMT_SECURE_SCL
+ // Returns pointer value.
+ static Char *get(CharPtr p)
+ {
+ return p.base();
+ }
+#else
+ static Char *get(Char *p)
+ {
+ return p;
+ }
+#endif
+
+ // Fills the padding around the content and returns the pointer to the
+ // content area.
+ static CharPtr fill_padding(CharPtr buffer, unsigned total_size, std::size_t content_size, wchar_t fill);
+
+ // Grows the buffer by n characters and returns a pointer to the newly
+ // allocated area.
+ CharPtr grow_buffer(std::size_t n)
+ {
+ std::size_t size = buffer_.size();
+ buffer_.resize(size + n);
+ return internal::make_ptr(&buffer_[size], n);
+ }
+
+ // Writes an unsigned decimal integer.
+ template<typename UInt>
+ Char *write_unsigned_decimal(UInt value, unsigned prefix_size = 0)
+ {
+ unsigned num_digits = internal::count_digits(value);
+ Char *ptr = get(grow_buffer(prefix_size + num_digits));
+ internal::format_decimal(ptr + prefix_size, value, num_digits);
+ return ptr;
+ }
+
+ // Writes a decimal integer.
+ template<typename Int>
+ void write_decimal(Int value)
+ {
+ typedef typename internal::IntTraits<Int>::MainType MainType;
+ MainType abs_value = static_cast<MainType>(value);
+ if (internal::is_negative(value))
+ {
+ abs_value = 0 - abs_value;
+ *write_unsigned_decimal(abs_value, 1) = '-';
+ }
+ else
+ {
+ write_unsigned_decimal(abs_value, 0);
+ }
+ }
+
+ // Prepare a buffer for integer formatting.
+ CharPtr prepare_int_buffer(unsigned num_digits, const EmptySpec &, const char *prefix, unsigned prefix_size)
+ {
+ unsigned size = prefix_size + num_digits;
+ CharPtr p = grow_buffer(size);
+ std::uninitialized_copy(prefix, prefix + prefix_size, p);
+ return p + size - 1;
+ }
+
+ template<typename Spec>
+ CharPtr prepare_int_buffer(unsigned num_digits, const Spec &spec, const char *prefix, unsigned prefix_size);
+
+ // Formats an integer.
+ template<typename T, typename Spec>
+ void write_int(T value, Spec spec);
+
+ // Formats a floating-point number (double or long double).
+ template<typename T, typename Spec>
+ void write_double(T value, const Spec &spec);
+
+ // Writes a formatted string.
+ template<typename StrChar>
+ CharPtr write_str(const StrChar *s, std::size_t size, const AlignSpec &spec);
+
+ template<typename StrChar, typename Spec>
+ void write_str(const internal::Arg::StringValue<StrChar> &str, const Spec &spec);
+
+ // This following methods are private to disallow writing wide characters
+ // and strings to a char stream. If you want to print a wide string as a
+ // pointer as std::ostream does, cast it to const void*.
+ // Do not implement!
+ void operator<<(typename internal::WCharHelper<wchar_t, Char>::Unsupported);
+ void operator<<(typename internal::WCharHelper<const wchar_t *, Char>::Unsupported);
+
+ // Appends floating-point length specifier to the format string.
+ // The second argument is only used for overload resolution.
+ void append_float_length(Char *&format_ptr, long double)
+ {
+ *format_ptr++ = 'L';
+ }
+
+ template<typename T>
+ void append_float_length(Char *&, T)
+ {
+ }
+
+ template<typename Impl, typename Char_, typename Spec_>
+ friend class internal::ArgFormatterBase;
+
+ template<typename Impl, typename Char_, typename Spec_>
+ friend class BasicPrintfArgFormatter;
+
+protected:
+ /**
+ Constructs a ``BasicWriter`` object.
+ */
+ explicit BasicWriter(Buffer<Char> &b)
+ : buffer_(b)
+ {
+ }
+
+public:
+ /**
+ \rst
+ Destroys a ``BasicWriter`` object.
+ \endrst
+ */
+ virtual ~BasicWriter() {}
+
+ /**
+ Returns the total number of characters written.
+ */
+ std::size_t size() const
+ {
+ return buffer_.size();
+ }
+
+ /**
+ Returns a pointer to the output buffer content. No terminating null
+ character is appended.
+ */
+ const Char *data() const FMT_NOEXCEPT
+ {
+ return &buffer_[0];
+ }
+
+ /**
+ Returns a pointer to the output buffer content with terminating null
+ character appended.
+ */
+ const Char *c_str() const
+ {
+ std::size_t size = buffer_.size();
+ buffer_.reserve(size + 1);
+ buffer_[size] = '\0';
+ return &buffer_[0];
+ }
+
+ /**
+ \rst
+ Returns the content of the output buffer as an `std::string`.
+ \endrst
+ */
+ std::basic_string<Char> str() const
+ {
+ return std::basic_string<Char>(&buffer_[0], buffer_.size());
+ }
+
+ /**
+ \rst
+ Writes formatted data.
+
+ *args* is an argument list representing arbitrary arguments.
+
+ **Example**::
+
+ MemoryWriter out;
+ out.write("Current point:\n");
+ out.write("({:+f}, {:+f})", -3.14, 3.14);
+
+ This will write the following output to the ``out`` object:
+
+ .. code-block:: none
+
+ Current point:
+ (-3.140000, +3.140000)
+
+ The output can be accessed using :func:`data()`, :func:`c_str` or
+ :func:`str` methods.
+
+ See also :ref:`syntax`.
+ \endrst
+ */
+ void write(BasicCStringRef<Char> format, ArgList args)
+ {
+ BasicFormatter<Char>(args, *this).format(format);
+ }
+ FMT_VARIADIC_VOID(write, BasicCStringRef<Char>)
+
+ BasicWriter &operator<<(int value)
+ {
+ write_decimal(value);
+ return *this;
+ }
+ BasicWriter &operator<<(unsigned value)
+ {
+ return *this << IntFormatSpec<unsigned>(value);
+ }
+ BasicWriter &operator<<(long value)
+ {
+ write_decimal(value);
+ return *this;
+ }
+ BasicWriter &operator<<(unsigned long value)
+ {
+ return *this << IntFormatSpec<unsigned long>(value);
+ }
+ BasicWriter &operator<<(LongLong value)
+ {
+ write_decimal(value);
+ return *this;
+ }
+
+ /**
+ \rst
+ Formats *value* and writes it to the stream.
+ \endrst
+ */
+ BasicWriter &operator<<(ULongLong value)
+ {
+ return *this << IntFormatSpec<ULongLong>(value);
+ }
+
+ BasicWriter &operator<<(double value)
+ {
+ write_double(value, FormatSpec());
+ return *this;
+ }
+
+ /**
+ \rst
+ Formats *value* using the general format for floating-point numbers
+ (``'g'``) and writes it to the stream.
+ \endrst
+ */
+ BasicWriter &operator<<(long double value)
+ {
+ write_double(value, FormatSpec());
+ return *this;
+ }
+
+ /**
+ Writes a character to the stream.
+ */
+ BasicWriter &operator<<(char value)
+ {
+ buffer_.push_back(value);
+ return *this;
+ }
+
+ BasicWriter &operator<<(typename internal::WCharHelper<wchar_t, Char>::Supported value)
+ {
+ buffer_.push_back(value);
+ return *this;
+ }
+
+ /**
+ \rst
+ Writes *value* to the stream.
+ \endrst
+ */
+ BasicWriter &operator<<(fmt::BasicStringRef<Char> value)
+ {
+ const Char *str = value.data();
+ buffer_.append(str, str + value.size());
+ return *this;
+ }
+
+ BasicWriter &operator<<(typename internal::WCharHelper<StringRef, Char>::Supported value)
+ {
+ const char *str = value.data();
+ buffer_.append(str, str + value.size());
+ return *this;
+ }
+
+ template<typename T, typename Spec, typename FillChar>
+ BasicWriter &operator<<(IntFormatSpec<T, Spec, FillChar> spec)
+ {
+ internal::CharTraits<Char>::convert(FillChar());
+ write_int(spec.value(), spec);
+ return *this;
+ }
+
+ template<typename StrChar>
+ BasicWriter &operator<<(const StrFormatSpec<StrChar> &spec)
+ {
+ const StrChar *s = spec.str();
+ write_str(s, std::char_traits<Char>::length(s), spec);
+ return *this;
+ }
+
+ void clear() FMT_NOEXCEPT
+ {
+ buffer_.clear();
+ }
+
+ Buffer<Char> &buffer() FMT_NOEXCEPT
+ {
+ return buffer_;
+ }
+};
+
+template<typename Char>
+template<typename StrChar>
+typename BasicWriter<Char>::CharPtr BasicWriter<Char>::write_str(const StrChar *s, std::size_t size, const AlignSpec &spec)
+{
+ CharPtr out = CharPtr();
+ if (spec.width() > size)
+ {
+ out = grow_buffer(spec.width());
+ Char fill = internal::CharTraits<Char>::cast(spec.fill());
+ if (spec.align() == ALIGN_RIGHT)
+ {
+ std::uninitialized_fill_n(out, spec.width() - size, fill);
+ out += spec.width() - size;
+ }
+ else if (spec.align() == ALIGN_CENTER)
+ {
+ out = fill_padding(out, spec.width(), size, fill);
+ }
+ else
+ {
+ std::uninitialized_fill_n(out + size, spec.width() - size, fill);
+ }
+ }
+ else
+ {
+ out = grow_buffer(size);
+ }
+ std::uninitialized_copy(s, s + size, out);
+ return out;
+}
+
+template<typename Char>
+template<typename StrChar, typename Spec>
+void BasicWriter<Char>::write_str(const internal::Arg::StringValue<StrChar> &s, const Spec &spec)
+{
+ // Check if StrChar is convertible to Char.
+ internal::CharTraits<Char>::convert(StrChar());
+ if (spec.type_ && spec.type_ != 's')
+ internal::report_unknown_type(spec.type_, "string");
+ const StrChar *str_value = s.value;
+ std::size_t str_size = s.size;
+ if (str_size == 0)
+ {
+ if (!str_value)
+ {
+ FMT_THROW(FormatError("string pointer is null"));
+ }
+ }
+ std::size_t precision = static_cast<std::size_t>(spec.precision_);
+ if (spec.precision_ >= 0 && precision < str_size)
+ str_size = precision;
+ write_str(str_value, str_size, spec);
+}
+
+template<typename Char>
+typename BasicWriter<Char>::CharPtr BasicWriter<Char>::fill_padding(
+ CharPtr buffer, unsigned total_size, std::size_t content_size, wchar_t fill)
+{
+ std::size_t padding = total_size - content_size;
+ std::size_t left_padding = padding / 2;
+ Char fill_char = internal::CharTraits<Char>::cast(fill);
+ std::uninitialized_fill_n(buffer, left_padding, fill_char);
+ buffer += left_padding;
+ CharPtr content = buffer;
+ std::uninitialized_fill_n(buffer + content_size, padding - left_padding, fill_char);
+ return content;
+}
+
+template<typename Char>
+template<typename Spec>
+typename BasicWriter<Char>::CharPtr BasicWriter<Char>::prepare_int_buffer(
+ unsigned num_digits, const Spec &spec, const char *prefix, unsigned prefix_size)
+{
+ unsigned width = spec.width();
+ Alignment align = spec.align();
+ Char fill = internal::CharTraits<Char>::cast(spec.fill());
+ if (spec.precision() > static_cast<int>(num_digits))
+ {
+ // Octal prefix '0' is counted as a digit, so ignore it if precision
+ // is specified.
+ if (prefix_size > 0 && prefix[prefix_size - 1] == '0')
+ --prefix_size;
+ unsigned number_size = prefix_size + internal::to_unsigned(spec.precision());
+ AlignSpec subspec(number_size, '0', ALIGN_NUMERIC);
+ if (number_size >= width)
+ return prepare_int_buffer(num_digits, subspec, prefix, prefix_size);
+ buffer_.reserve(width);
+ unsigned fill_size = width - number_size;
+ if (align != ALIGN_LEFT)
+ {
+ CharPtr p = grow_buffer(fill_size);
+ std::uninitialized_fill(p, p + fill_size, fill);
+ }
+ CharPtr result = prepare_int_buffer(num_digits, subspec, prefix, prefix_size);
+ if (align == ALIGN_LEFT)
+ {
+ CharPtr p = grow_buffer(fill_size);
+ std::uninitialized_fill(p, p + fill_size, fill);
+ }
+ return result;
+ }
+ unsigned size = prefix_size + num_digits;
+ if (width <= size)
+ {
+ CharPtr p = grow_buffer(size);
+ std::uninitialized_copy(prefix, prefix + prefix_size, p);
+ return p + size - 1;
+ }
+ CharPtr p = grow_buffer(width);
+ CharPtr end = p + width;
+ if (align == ALIGN_LEFT)
+ {
+ std::uninitialized_copy(prefix, prefix + prefix_size, p);
+ p += size;
+ std::uninitialized_fill(p, end, fill);
+ }
+ else if (align == ALIGN_CENTER)
+ {
+ p = fill_padding(p, width, size, fill);
+ std::uninitialized_copy(prefix, prefix + prefix_size, p);
+ p += size;
+ }
+ else
+ {
+ if (align == ALIGN_NUMERIC)
+ {
+ if (prefix_size != 0)
+ {
+ p = std::uninitialized_copy(prefix, prefix + prefix_size, p);
+ size -= prefix_size;
+ }
+ }
+ else
+ {
+ std::uninitialized_copy(prefix, prefix + prefix_size, end - size);
+ }
+ std::uninitialized_fill(p, end - size, fill);
+ p = end;
+ }
+ return p - 1;
+}
+
+template<typename Char>
+template<typename T, typename Spec>
+void BasicWriter<Char>::write_int(T value, Spec spec)
+{
+ unsigned prefix_size = 0;
+ typedef typename internal::IntTraits<T>::MainType UnsignedType;
+ UnsignedType abs_value = static_cast<UnsignedType>(value);
+ char prefix[4] = "";
+ if (internal::is_negative(value))
+ {
+ prefix[0] = '-';
+ ++prefix_size;
+ abs_value = 0 - abs_value;
+ }
+ else if (spec.flag(SIGN_FLAG))
+ {
+ prefix[0] = spec.flag(PLUS_FLAG) ? '+' : ' ';
+ ++prefix_size;
+ }
+ switch (spec.type())
+ {
+ case 0:
+ case 'd':
+ {
+ unsigned num_digits = internal::count_digits(abs_value);
+ CharPtr p = prepare_int_buffer(num_digits, spec, prefix, prefix_size) + 1;
+ internal::format_decimal(get(p), abs_value, 0);
+ break;
+ }
+ case 'x':
+ case 'X':
+ {
+ UnsignedType n = abs_value;
+ if (spec.flag(HASH_FLAG))
+ {
+ prefix[prefix_size++] = '0';
+ prefix[prefix_size++] = spec.type_prefix();
+ }
+ unsigned num_digits = 0;
+ do
+ {
+ ++num_digits;
+ } while ((n >>= 4) != 0);
+ Char *p = get(prepare_int_buffer(num_digits, spec, prefix, prefix_size));
+ n = abs_value;
+ const char *digits = spec.type() == 'x' ? "0123456789abcdef" : "0123456789ABCDEF";
+ do
+ {
+ *p-- = digits[n & 0xf];
+ } while ((n >>= 4) != 0);
+ break;
+ }
+ case 'b':
+ case 'B':
+ {
+ UnsignedType n = abs_value;
+ if (spec.flag(HASH_FLAG))
+ {
+ prefix[prefix_size++] = '0';
+ prefix[prefix_size++] = spec.type_prefix();
+ }
+ unsigned num_digits = 0;
+ do
+ {
+ ++num_digits;
+ } while ((n >>= 1) != 0);
+ Char *p = get(prepare_int_buffer(num_digits, spec, prefix, prefix_size));
+ n = abs_value;
+ do
+ {
+ *p-- = static_cast<Char>('0' + (n & 1));
+ } while ((n >>= 1) != 0);
+ break;
+ }
+ case 'o':
+ {
+ UnsignedType n = abs_value;
+ if (spec.flag(HASH_FLAG))
+ prefix[prefix_size++] = '0';
+ unsigned num_digits = 0;
+ do
+ {
+ ++num_digits;
+ } while ((n >>= 3) != 0);
+ Char *p = get(prepare_int_buffer(num_digits, spec, prefix, prefix_size));
+ n = abs_value;
+ do
+ {
+ *p-- = static_cast<Char>('0' + (n & 7));
+ } while ((n >>= 3) != 0);
+ break;
+ }
+ case 'n':
+ {
+ unsigned num_digits = internal::count_digits(abs_value);
+ fmt::StringRef sep = "";
+#if !(defined(ANDROID) || defined(__ANDROID__))
+ sep = internal::thousands_sep(std::localeconv());
+#endif
+ unsigned size = static_cast<unsigned>(num_digits + sep.size() * ((num_digits - 1) / 3));
+ CharPtr p = prepare_int_buffer(size, spec, prefix, prefix_size) + 1;
+ internal::format_decimal(get(p), abs_value, 0, internal::ThousandsSep(sep));
+ break;
+ }
+ default:
+ internal::report_unknown_type(spec.type(), spec.flag(CHAR_FLAG) ? "char" : "integer");
+ break;
+ }
+}
+
+template<typename Char>
+template<typename T, typename Spec>
+void BasicWriter<Char>::write_double(T value, const Spec &spec)
+{
+ // Check type.
+ char type = spec.type();
+ bool upper = false;
+ switch (type)
+ {
+ case 0:
+ type = 'g';
+ break;
+ case 'e':
+ case 'f':
+ case 'g':
+ case 'a':
+ break;
+ case 'F':
+#if FMT_MSC_VER
+ // MSVC's printf doesn't support 'F'.
+ type = 'f';
+#endif
+ // Fall through.
+ case 'E':
+ case 'G':
+ case 'A':
+ upper = true;
+ break;
+ default:
+ internal::report_unknown_type(type, "double");
+ break;
+ }
+
+ char sign = 0;
+ // Use isnegative instead of value < 0 because the latter is always
+ // false for NaN.
+ if (internal::FPUtil::isnegative(static_cast<double>(value)))
+ {
+ sign = '-';
+ value = -value;
+ }
+ else if (spec.flag(SIGN_FLAG))
+ {
+ sign = spec.flag(PLUS_FLAG) ? '+' : ' ';
+ }
+
+ if (internal::FPUtil::isnotanumber(value))
+ {
+ // Format NaN ourselves because sprintf's output is not consistent
+ // across platforms.
+ std::size_t nan_size = 4;
+ const char *nan = upper ? " NAN" : " nan";
+ if (!sign)
+ {
+ --nan_size;
+ ++nan;
+ }
+ CharPtr out = write_str(nan, nan_size, spec);
+ if (sign)
+ *out = sign;
+ return;
+ }
+
+ if (internal::FPUtil::isinfinity(value))
+ {
+ // Format infinity ourselves because sprintf's output is not consistent
+ // across platforms.
+ std::size_t inf_size = 4;
+ const char *inf = upper ? " INF" : " inf";
+ if (!sign)
+ {
+ --inf_size;
+ ++inf;
+ }
+ CharPtr out = write_str(inf, inf_size, spec);
+ if (sign)
+ *out = sign;
+ return;
+ }
+
+ std::size_t offset = buffer_.size();
+ unsigned width = spec.width();
+ if (sign)
+ {
+ buffer_.reserve(buffer_.size() + (width > 1u ? width : 1u));
+ if (width > 0)
+ --width;
+ ++offset;
+ }
+
+ // Build format string.
+ enum
+ {
+ MAX_FORMAT_SIZE = 10
+ }; // longest format: %#-*.*Lg
+ Char format[MAX_FORMAT_SIZE];
+ Char *format_ptr = format;
+ *format_ptr++ = '%';
+ unsigned width_for_sprintf = width;
+ if (spec.flag(HASH_FLAG))
+ *format_ptr++ = '#';
+ if (spec.align() == ALIGN_CENTER)
+ {
+ width_for_sprintf = 0;
+ }
+ else
+ {
+ if (spec.align() == ALIGN_LEFT)
+ *format_ptr++ = '-';
+ if (width != 0)
+ *format_ptr++ = '*';
+ }
+ if (spec.precision() >= 0)
+ {
+ *format_ptr++ = '.';
+ *format_ptr++ = '*';
+ }
+
+ append_float_length(format_ptr, value);
+ *format_ptr++ = type;
+ *format_ptr = '\0';
+
+ // Format using snprintf.
+ Char fill = internal::CharTraits<Char>::cast(spec.fill());
+ unsigned n = 0;
+ Char *start = FMT_NULL;
+ for (;;)
+ {
+ std::size_t buffer_size = buffer_.capacity() - offset;
+#if FMT_MSC_VER
+ // MSVC's vsnprintf_s doesn't work with zero size, so reserve
+ // space for at least one extra character to make the size non-zero.
+ // Note that the buffer's capacity will increase by more than 1.
+ if (buffer_size == 0)
+ {
+ buffer_.reserve(offset + 1);
+ buffer_size = buffer_.capacity() - offset;
+ }
+#endif
+ start = &buffer_[offset];
+ int result = internal::CharTraits<Char>::format_float(start, buffer_size, format, width_for_sprintf, spec.precision(), value);
+ if (result >= 0)
+ {
+ n = internal::to_unsigned(result);
+ if (offset + n < buffer_.capacity())
+ break; // The buffer is large enough - continue with formatting.
+ buffer_.reserve(offset + n + 1);
+ }
+ else
+ {
+ // If result is negative we ask to increase the capacity by at least 1,
+ // but as std::vector, the buffer grows exponentially.
+ buffer_.reserve(buffer_.capacity() + 1);
+ }
+ }
+ if (sign)
+ {
+ if ((spec.align() != ALIGN_RIGHT && spec.align() != ALIGN_DEFAULT) || *start != ' ')
+ {
+ *(start - 1) = sign;
+ sign = 0;
+ }
+ else
+ {
+ *(start - 1) = fill;
+ }
+ ++n;
+ }
+ if (spec.align() == ALIGN_CENTER && spec.width() > n)
+ {
+ width = spec.width();
+ CharPtr p = grow_buffer(width);
+ std::memmove(get(p) + (width - n) / 2, get(p), n * sizeof(Char));
+ fill_padding(p, spec.width(), n, fill);
+ return;
+ }
+ if (spec.fill() != ' ' || sign)
+ {
+ while (*start == ' ')
+ *start++ = fill;
+ if (sign)
+ *(start - 1) = sign;
+ }
+ grow_buffer(n);
+}
+
+/**
+ \rst
+ This class template provides operations for formatting and writing data
+ into a character stream. The output is stored in a memory buffer that grows
+ dynamically.
+
+ You can use one of the following typedefs for common character types
+ and the standard allocator:
+
+ +---------------+-----------------------------------------------------+
+ | Type | Definition |
+ +===============+=====================================================+
+ | MemoryWriter | BasicMemoryWriter<char, std::allocator<char>> |
+ +---------------+-----------------------------------------------------+
+ | WMemoryWriter | BasicMemoryWriter<wchar_t, std::allocator<wchar_t>> |
+ +---------------+-----------------------------------------------------+
+
+ **Example**::
+
+ MemoryWriter out;
+ out << "The answer is " << 42 << "\n";
+ out.write("({:+f}, {:+f})", -3.14, 3.14);
+
+ This will write the following output to the ``out`` object:
+
+ .. code-block:: none
+
+ The answer is 42
+ (-3.140000, +3.140000)
+
+ The output can be converted to an ``std::string`` with ``out.str()`` or
+ accessed as a C string with ``out.c_str()``.
+ \endrst
+ */
+template<typename Char, typename Allocator = std::allocator<Char>>
+class BasicMemoryWriter : public BasicWriter<Char>
+{
+private:
+ internal::MemoryBuffer<Char, internal::INLINE_BUFFER_SIZE, Allocator> buffer_;
+
+public:
+ explicit BasicMemoryWriter(const Allocator &alloc = Allocator())
+ : BasicWriter<Char>(buffer_)
+ , buffer_(alloc)
+ {
+ }
+
+#if FMT_USE_RVALUE_REFERENCES
+ /**
+ \rst
+ Constructs a :class:`fmt::BasicMemoryWriter` object moving the content
+ of the other object to it.
+ \endrst
+ */
+ BasicMemoryWriter(BasicMemoryWriter &&other)
+ : BasicWriter<Char>(buffer_)
+ , buffer_(std::move(other.buffer_))
+ {
+ }
+
+ /**
+ \rst
+ Moves the content of the other ``BasicMemoryWriter`` object to this one.
+ \endrst
+ */
+ BasicMemoryWriter &operator=(BasicMemoryWriter &&other)
+ {
+ buffer_ = std::move(other.buffer_);
+ return *this;
+ }
+#endif
+};
+
+typedef BasicMemoryWriter<char> MemoryWriter;
+typedef BasicMemoryWriter<wchar_t> WMemoryWriter;
+
+/**
+ \rst
+ This class template provides operations for formatting and writing data
+ into a fixed-size array. For writing into a dynamically growing buffer
+ use :class:`fmt::BasicMemoryWriter`.
+
+ Any write method will throw ``std::runtime_error`` if the output doesn't fit
+ into the array.
+
+ You can use one of the following typedefs for common character types:
+
+ +--------------+---------------------------+
+ | Type | Definition |
+ +==============+===========================+
+ | ArrayWriter | BasicArrayWriter<char> |
+ +--------------+---------------------------+
+ | WArrayWriter | BasicArrayWriter<wchar_t> |
+ +--------------+---------------------------+
+ \endrst
+ */
+template<typename Char>
+class BasicArrayWriter : public BasicWriter<Char>
+{
+private:
+ internal::FixedBuffer<Char> buffer_;
+
+public:
+ /**
+ \rst
+ Constructs a :class:`fmt::BasicArrayWriter` object for *array* of the
+ given size.
+ \endrst
+ */
+ BasicArrayWriter(Char *array, std::size_t size)
+ : BasicWriter<Char>(buffer_)
+ , buffer_(array, size)
+ {
+ }
+
+ /**
+ \rst
+ Constructs a :class:`fmt::BasicArrayWriter` object for *array* of the
+ size known at compile time.
+ \endrst
+ */
+ template<std::size_t SIZE>
+ explicit BasicArrayWriter(Char (&array)[SIZE])
+ : BasicWriter<Char>(buffer_)
+ , buffer_(array, SIZE)
+ {
+ }
+};
+
+typedef BasicArrayWriter<char> ArrayWriter;
+typedef BasicArrayWriter<wchar_t> WArrayWriter;
+
+// Reports a system error without throwing an exception.
+// Can be used to report errors from destructors.
+FMT_API void report_system_error(int error_code, StringRef message) FMT_NOEXCEPT;
+
+#if FMT_USE_WINDOWS_H
+
+/** A Windows error. */
+class WindowsError : public SystemError
+{
+private:
+ FMT_API void init(int error_code, CStringRef format_str, ArgList args);
+
+public:
+ /**
+ \rst
+ Constructs a :class:`fmt::WindowsError` object with the description
+ of the form
+
+ .. parsed-literal::
+ *<message>*: *<system-message>*
+
+ where *<message>* is the formatted message and *<system-message>* is the
+ system message corresponding to the error code.
+ *error_code* is a Windows error code as given by ``GetLastError``.
+ If *error_code* is not a valid error code such as -1, the system message
+ will look like "error -1".
+
+ **Example**::
+
+ // This throws a WindowsError with the description
+ // cannot open file 'madeup': The system cannot find the file specified.
+ // or similar (system message may vary).
+ const char *filename = "madeup";
+ LPOFSTRUCT of = LPOFSTRUCT();
+ HFILE file = OpenFile(filename, &of, OF_READ);
+ if (file == HFILE_ERROR) {
+ throw fmt::WindowsError(GetLastError(),
+ "cannot open file '{}'", filename);
+ }
+ \endrst
+ */
+ WindowsError(int error_code, CStringRef message)
+ {
+ init(error_code, message, ArgList());
+ }
+ FMT_VARIADIC_CTOR(WindowsError, init, int, CStringRef)
+};
+
+// Reports a Windows error without throwing an exception.
+// Can be used to report errors from destructors.
+FMT_API void report_windows_error(int error_code, StringRef message) FMT_NOEXCEPT;
+
+#endif
+
+enum Color
+{
+ BLACK,
+ RED,
+ GREEN,
+ YELLOW,
+ BLUE,
+ MAGENTA,
+ CYAN,
+ WHITE
+};
+
+/**
+ Formats a string and prints it to stdout using ANSI escape sequences
+ to specify color (experimental).
+ Example:
+ print_colored(fmt::RED, "Elapsed time: {0:.2f} seconds", 1.23);
+ */
+FMT_API void print_colored(Color c, CStringRef format, ArgList args);
+
+/**
+ \rst
+ Formats arguments and returns the result as a string.
+
+ **Example**::
+
+ std::string message = format("The answer is {}", 42);
+ \endrst
+*/
+inline std::string format(CStringRef format_str, ArgList args)
+{
+ MemoryWriter w;
+ w.write(format_str, args);
+ return w.str();
+}
+
+inline std::wstring format(WCStringRef format_str, ArgList args)
+{
+ WMemoryWriter w;
+ w.write(format_str, args);
+ return w.str();
+}
+
+/**
+ \rst
+ Prints formatted data to the file *f*.
+
+ **Example**::
+
+ print(stderr, "Don't {}!", "panic");
+ \endrst
+ */
+FMT_API void print(std::FILE *f, CStringRef format_str, ArgList args);
+
+/**
+ \rst
+ Prints formatted data to ``stdout``.
+
+ **Example**::
+
+ print("Elapsed time: {0:.2f} seconds", 1.23);
+ \endrst
+ */
+FMT_API void print(CStringRef format_str, ArgList args);
+
+/**
+ Fast integer formatter.
+ */
+class FormatInt
+{
+private:
+ // Buffer should be large enough to hold all digits (digits10 + 1),
+ // a sign and a null character.
+ enum
+ {
+ BUFFER_SIZE = std::numeric_limits<ULongLong>::digits10 + 3
+ };
+ mutable char buffer_[BUFFER_SIZE];
+ char *str_;
+
+ // Formats value in reverse and returns the number of digits.
+ char *format_decimal(ULongLong value)
+ {
+ char *buffer_end = buffer_ + BUFFER_SIZE - 1;
+ while (value >= 100)
+ {
+ // Integer division is slow so do it for a group of two digits instead
+ // of for every digit. The idea comes from the talk by Alexandrescu
+ // "Three Optimization Tips for C++". See speed-test for a comparison.
+ unsigned index = static_cast<unsigned>((value % 100) * 2);
+ value /= 100;
+ *--buffer_end = internal::Data::DIGITS[index + 1];
+ *--buffer_end = internal::Data::DIGITS[index];
+ }
+ if (value < 10)
+ {
+ *--buffer_end = static_cast<char>('0' + value);
+ return buffer_end;
+ }
+ unsigned index = static_cast<unsigned>(value * 2);
+ *--buffer_end = internal::Data::DIGITS[index + 1];
+ *--buffer_end = internal::Data::DIGITS[index];
+ return buffer_end;
+ }
+
+ void FormatSigned(LongLong value)
+ {
+ ULongLong abs_value = static_cast<ULongLong>(value);
+ bool negative = value < 0;
+ if (negative)
+ abs_value = 0 - abs_value;
+ str_ = format_decimal(abs_value);
+ if (negative)
+ *--str_ = '-';
+ }
+
+public:
+ explicit FormatInt(int value)
+ {
+ FormatSigned(value);
+ }
+ explicit FormatInt(long value)
+ {
+ FormatSigned(value);
+ }
+ explicit FormatInt(LongLong value)
+ {
+ FormatSigned(value);
+ }
+ explicit FormatInt(unsigned value)
+ : str_(format_decimal(value))
+ {
+ }
+ explicit FormatInt(unsigned long value)
+ : str_(format_decimal(value))
+ {
+ }
+ explicit FormatInt(ULongLong value)
+ : str_(format_decimal(value))
+ {
+ }
+
+ /** Returns the number of characters written to the output buffer. */
+ std::size_t size() const
+ {
+ return internal::to_unsigned(buffer_ - str_ + BUFFER_SIZE - 1);
+ }
+
+ /**
+ Returns a pointer to the output buffer content. No terminating null
+ character is appended.
+ */
+ const char *data() const
+ {
+ return str_;
+ }
+
+ /**
+ Returns a pointer to the output buffer content with terminating null
+ character appended.
+ */
+ const char *c_str() const
+ {
+ buffer_[BUFFER_SIZE - 1] = '\0';
+ return str_;
+ }
+
+ /**
+ \rst
+ Returns the content of the output buffer as an ``std::string``.
+ \endrst
+ */
+ std::string str() const
+ {
+ return std::string(str_, size());
+ }
+};
+
+// Formats a decimal integer value writing into buffer and returns
+// a pointer to the end of the formatted string. This function doesn't
+// write a terminating null character.
+template<typename T>
+inline void format_decimal(char *&buffer, T value)
+{
+ typedef typename internal::IntTraits<T>::MainType MainType;
+ MainType abs_value = static_cast<MainType>(value);
+ if (internal::is_negative(value))
+ {
+ *buffer++ = '-';
+ abs_value = 0 - abs_value;
+ }
+ if (abs_value < 100)
+ {
+ if (abs_value < 10)
+ {
+ *buffer++ = static_cast<char>('0' + abs_value);
+ return;
+ }
+ unsigned index = static_cast<unsigned>(abs_value * 2);
+ *buffer++ = internal::Data::DIGITS[index];
+ *buffer++ = internal::Data::DIGITS[index + 1];
+ return;
+ }
+ unsigned num_digits = internal::count_digits(abs_value);
+ internal::format_decimal(buffer, abs_value, num_digits);
+ buffer += num_digits;
+}
+
+/**
+ \rst
+ Returns a named argument for formatting functions.
+
+ **Example**::
+
+ print("Elapsed time: {s:.2f} seconds", arg("s", 1.23));
+
+ \endrst
+ */
+template<typename T>
+inline internal::NamedArgWithType<char, T> arg(StringRef name, const T &arg)
+{
+ return internal::NamedArgWithType<char, T>(name, arg);
+}
+
+template<typename T>
+inline internal::NamedArgWithType<wchar_t, T> arg(WStringRef name, const T &arg)
+{
+ return internal::NamedArgWithType<wchar_t, T>(name, arg);
+}
+
+// The following two functions are deleted intentionally to disable
+// nested named arguments as in ``format("{}", arg("a", arg("b", 42)))``.
+template<typename Char>
+void arg(StringRef, const internal::NamedArg<Char> &) FMT_DELETED_OR_UNDEFINED;
+template<typename Char>
+void arg(WStringRef, const internal::NamedArg<Char> &) FMT_DELETED_OR_UNDEFINED;
+} // namespace fmt
+
+#if FMT_GCC_VERSION
+// Use the system_header pragma to suppress warnings about variadic macros
+// because suppressing -Wvariadic-macros with the diagnostic pragma doesn't
+// work. It is used at the end because we want to suppress as little warnings
+// as possible.
+#pragma GCC system_header
+#endif
+
+// This is used to work around VC++ bugs in handling variadic macros.
+#define FMT_EXPAND(args) args
+
+// Returns the number of arguments.
+// Based on https://groups.google.com/forum/#!topic/comp.std.c/d-6Mj5Lko_s.
+#define FMT_NARG(...) FMT_NARG_(__VA_ARGS__, FMT_RSEQ_N())
+#define FMT_NARG_(...) FMT_EXPAND(FMT_ARG_N(__VA_ARGS__))
+#define FMT_ARG_N(_1, _2, _3, _4, _5, _6, _7, _8, _9, _10, N, ...) N
+#define FMT_RSEQ_N() 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0
+
+#define FMT_FOR_EACH_(N, f, ...) FMT_EXPAND(FMT_CONCAT(FMT_FOR_EACH, N)(f, __VA_ARGS__))
+#define FMT_FOR_EACH(f, ...) FMT_EXPAND(FMT_FOR_EACH_(FMT_NARG(__VA_ARGS__), f, __VA_ARGS__))
+
+#define FMT_ADD_ARG_NAME(type, index) type arg##index
+#define FMT_GET_ARG_NAME(type, index) arg##index
+
+#if FMT_USE_VARIADIC_TEMPLATES
+#define FMT_VARIADIC_(Const, Char, ReturnType, func, call, ...) \
+ template<typename... Args> \
+ ReturnType func(FMT_FOR_EACH(FMT_ADD_ARG_NAME, __VA_ARGS__), const Args &... args) Const \
+ { \
+ typedef fmt::internal::ArgArray<sizeof...(Args)> ArgArray; \
+ typename ArgArray::Type array{ArgArray::template make<fmt::BasicFormatter<Char>>(args)...}; \
+ call(FMT_FOR_EACH(FMT_GET_ARG_NAME, __VA_ARGS__), fmt::ArgList(fmt::internal::make_type(args...), array)); \
+ }
+#else
+// Defines a wrapper for a function taking __VA_ARGS__ arguments
+// and n additional arguments of arbitrary types.
+#define FMT_WRAP(Const, Char, ReturnType, func, call, n, ...) \
+ template<FMT_GEN(n, FMT_MAKE_TEMPLATE_ARG)> \
+ inline ReturnType func(FMT_FOR_EACH(FMT_ADD_ARG_NAME, __VA_ARGS__), FMT_GEN(n, FMT_MAKE_ARG)) Const \
+ { \
+ fmt::internal::ArgArray<n>::Type arr; \
+ FMT_GEN(n, FMT_ASSIGN_##Char); \
+ call(FMT_FOR_EACH(FMT_GET_ARG_NAME, __VA_ARGS__), fmt::ArgList(fmt::internal::make_type(FMT_GEN(n, FMT_MAKE_REF2)), arr)); \
+ }
+
+#define FMT_VARIADIC_(Const, Char, ReturnType, func, call, ...) \
+ inline ReturnType func(FMT_FOR_EACH(FMT_ADD_ARG_NAME, __VA_ARGS__)) Const \
+ { \
+ call(FMT_FOR_EACH(FMT_GET_ARG_NAME, __VA_ARGS__), fmt::ArgList()); \
+ } \
+ FMT_WRAP(Const, Char, ReturnType, func, call, 1, __VA_ARGS__) \
+ FMT_WRAP(Const, Char, ReturnType, func, call, 2, __VA_ARGS__) \
+ FMT_WRAP(Const, Char, ReturnType, func, call, 3, __VA_ARGS__) \
+ FMT_WRAP(Const, Char, ReturnType, func, call, 4, __VA_ARGS__) \
+ FMT_WRAP(Const, Char, ReturnType, func, call, 5, __VA_ARGS__) \
+ FMT_WRAP(Const, Char, ReturnType, func, call, 6, __VA_ARGS__) \
+ FMT_WRAP(Const, Char, ReturnType, func, call, 7, __VA_ARGS__) \
+ FMT_WRAP(Const, Char, ReturnType, func, call, 8, __VA_ARGS__) \
+ FMT_WRAP(Const, Char, ReturnType, func, call, 9, __VA_ARGS__) \
+ FMT_WRAP(Const, Char, ReturnType, func, call, 10, __VA_ARGS__) \
+ FMT_WRAP(Const, Char, ReturnType, func, call, 11, __VA_ARGS__) \
+ FMT_WRAP(Const, Char, ReturnType, func, call, 12, __VA_ARGS__) \
+ FMT_WRAP(Const, Char, ReturnType, func, call, 13, __VA_ARGS__) \
+ FMT_WRAP(Const, Char, ReturnType, func, call, 14, __VA_ARGS__) \
+ FMT_WRAP(Const, Char, ReturnType, func, call, 15, __VA_ARGS__)
+#endif // FMT_USE_VARIADIC_TEMPLATES
+
+/**
+ \rst
+ Defines a variadic function with the specified return type, function name
+ and argument types passed as variable arguments to this macro.
+
+ **Example**::
+
+ void print_error(const char *file, int line, const char *format,
+ fmt::ArgList args) {
+ fmt::print("{}: {}: ", file, line);
+ fmt::print(format, args);
+ }
+ FMT_VARIADIC(void, print_error, const char *, int, const char *)
+
+ ``FMT_VARIADIC`` is used for compatibility with legacy C++ compilers that
+ don't implement variadic templates. You don't have to use this macro if
+ you don't need legacy compiler support and can use variadic templates
+ directly::
+
+ template <typename... Args>
+ void print_error(const char *file, int line, const char *format,
+ const Args & ... args) {
+ fmt::print("{}: {}: ", file, line);
+ fmt::print(format, args...);
+ }
+ \endrst
+ */
+#define FMT_VARIADIC(ReturnType, func, ...) FMT_VARIADIC_(, char, ReturnType, func, return func, __VA_ARGS__)
+
+#define FMT_VARIADIC_CONST(ReturnType, func, ...) FMT_VARIADIC_(const, char, ReturnType, func, return func, __VA_ARGS__)
+
+#define FMT_VARIADIC_W(ReturnType, func, ...) FMT_VARIADIC_(, wchar_t, ReturnType, func, return func, __VA_ARGS__)
+
+#define FMT_VARIADIC_CONST_W(ReturnType, func, ...) FMT_VARIADIC_(const, wchar_t, ReturnType, func, return func, __VA_ARGS__)
+
+#define FMT_CAPTURE_ARG_(id, index) ::fmt::arg(#id, id)
+
+#define FMT_CAPTURE_ARG_W_(id, index) ::fmt::arg(L## #id, id)
+
+/**
+ \rst
+ Convenient macro to capture the arguments' names and values into several
+ ``fmt::arg(name, value)``.
+
+ **Example**::
+
+ int x = 1, y = 2;
+ print("point: ({x}, {y})", FMT_CAPTURE(x, y));
+ // same as:
+ // print("point: ({x}, {y})", arg("x", x), arg("y", y));
+
+ \endrst
+ */
+#define FMT_CAPTURE(...) FMT_FOR_EACH(FMT_CAPTURE_ARG_, __VA_ARGS__)
+
+#define FMT_CAPTURE_W(...) FMT_FOR_EACH(FMT_CAPTURE_ARG_W_, __VA_ARGS__)
+
+namespace fmt {
+FMT_VARIADIC(std::string, format, CStringRef)
+FMT_VARIADIC_W(std::wstring, format, WCStringRef)
+FMT_VARIADIC(void, print, CStringRef)
+FMT_VARIADIC(void, print, std::FILE *, CStringRef)
+FMT_VARIADIC(void, print_colored, Color, CStringRef)
+
+namespace internal {
+template<typename Char>
+inline bool is_name_start(Char c)
+{
+ return ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z') || '_' == c;
+}
+
+// Parses an unsigned integer advancing s to the end of the parsed input.
+// This function assumes that the first character of s is a digit.
+template<typename Char>
+unsigned parse_nonnegative_int(const Char *&s)
+{
+ assert('0' <= *s && *s <= '9');
+ unsigned value = 0;
+ // Convert to unsigned to prevent a warning.
+ unsigned max_int = (std::numeric_limits<int>::max)();
+ unsigned big = max_int / 10;
+ do
+ {
+ // Check for overflow.
+ if (value > big)
+ {
+ value = max_int + 1;
+ break;
+ }
+ value = value * 10 + (*s - '0');
+ ++s;
+ } while ('0' <= *s && *s <= '9');
+ // Convert to unsigned to prevent a warning.
+ if (value > max_int)
+ FMT_THROW(FormatError("number is too big"));
+ return value;
+}
+
+inline void require_numeric_argument(const Arg &arg, char spec)
+{
+ if (arg.type > Arg::LAST_NUMERIC_TYPE)
+ {
+ std::string message = fmt::format("format specifier '{}' requires numeric argument", spec);
+ FMT_THROW(fmt::FormatError(message));
+ }
+}
+
+template<typename Char>
+void check_sign(const Char *&s, const Arg &arg)
+{
+ char sign = static_cast<char>(*s);
+ require_numeric_argument(arg, sign);
+ if (arg.type == Arg::UINT || arg.type == Arg::ULONG_LONG)
+ {
+ FMT_THROW(FormatError(fmt::format("format specifier '{}' requires signed argument", sign)));
+ }
+ ++s;
+}
+} // namespace internal
+
+template<typename Char, typename AF>
+inline internal::Arg BasicFormatter<Char, AF>::get_arg(BasicStringRef<Char> arg_name, const char *&error)
+{
+ if (check_no_auto_index(error))
+ {
+ map_.init(args());
+ const internal::Arg *arg = map_.find(arg_name);
+ if (arg)
+ return *arg;
+ error = "argument not found";
+ }
+ return internal::Arg();
+}
+
+template<typename Char, typename AF>
+inline internal::Arg BasicFormatter<Char, AF>::parse_arg_index(const Char *&s)
+{
+ const char *error = FMT_NULL;
+ internal::Arg arg = *s < '0' || *s > '9' ? next_arg(error) : get_arg(internal::parse_nonnegative_int(s), error);
+ if (error)
+ {
+ FMT_THROW(FormatError(*s != '}' && *s != ':' ? "invalid format string" : error));
+ }
+ return arg;
+}
+
+template<typename Char, typename AF>
+inline internal::Arg BasicFormatter<Char, AF>::parse_arg_name(const Char *&s)
+{
+ assert(internal::is_name_start(*s));
+ const Char *start = s;
+ Char c;
+ do
+ {
+ c = *++s;
+ } while (internal::is_name_start(c) || ('0' <= c && c <= '9'));
+ const char *error = FMT_NULL;
+ internal::Arg arg = get_arg(BasicStringRef<Char>(start, s - start), error);
+ if (error)
+ FMT_THROW(FormatError(error));
+ return arg;
+}
+
+template<typename Char, typename ArgFormatter>
+const Char *BasicFormatter<Char, ArgFormatter>::format(const Char *&format_str, const internal::Arg &arg)
+{
+ using internal::Arg;
+ const Char *s = format_str;
+ typename ArgFormatter::SpecType spec;
+ if (*s == ':')
+ {
+ if (arg.type == Arg::CUSTOM)
+ {
+ arg.custom.format(this, arg.custom.value, &s);
+ return s;
+ }
+ ++s;
+ // Parse fill and alignment.
+ if (Char c = *s)
+ {
+ const Char *p = s + 1;
+ spec.align_ = ALIGN_DEFAULT;
+ do
+ {
+ switch (*p)
+ {
+ case '<':
+ spec.align_ = ALIGN_LEFT;
+ break;
+ case '>':
+ spec.align_ = ALIGN_RIGHT;
+ break;
+ case '=':
+ spec.align_ = ALIGN_NUMERIC;
+ break;
+ case '^':
+ spec.align_ = ALIGN_CENTER;
+ break;
+ }
+ if (spec.align_ != ALIGN_DEFAULT)
+ {
+ if (p != s)
+ {
+ if (c == '}')
+ break;
+ if (c == '{')
+ FMT_THROW(FormatError("invalid fill character '{'"));
+ s += 2;
+ spec.fill_ = c;
+ }
+ else
+ ++s;
+ if (spec.align_ == ALIGN_NUMERIC)
+ require_numeric_argument(arg, '=');
+ break;
+ }
+ } while (--p >= s);
+ }
+
+ // Parse sign.
+ switch (*s)
+ {
+ case '+':
+ check_sign(s, arg);
+ spec.flags_ |= SIGN_FLAG | PLUS_FLAG;
+ break;
+ case '-':
+ check_sign(s, arg);
+ spec.flags_ |= MINUS_FLAG;
+ break;
+ case ' ':
+ check_sign(s, arg);
+ spec.flags_ |= SIGN_FLAG;
+ break;
+ }
+
+ if (*s == '#')
+ {
+ require_numeric_argument(arg, '#');
+ spec.flags_ |= HASH_FLAG;
+ ++s;
+ }
+
+ // Parse zero flag.
+ if (*s == '0')
+ {
+ require_numeric_argument(arg, '0');
+ spec.align_ = ALIGN_NUMERIC;
+ spec.fill_ = '0';
+ ++s;
+ }
+
+ // Parse width.
+ if ('0' <= *s && *s <= '9')
+ {
+ spec.width_ = internal::parse_nonnegative_int(s);
+ }
+ else if (*s == '{')
+ {
+ ++s;
+ Arg width_arg = internal::is_name_start(*s) ? parse_arg_name(s) : parse_arg_index(s);
+ if (*s++ != '}')
+ FMT_THROW(FormatError("invalid format string"));
+ ULongLong value = 0;
+ switch (width_arg.type)
+ {
+ case Arg::INT:
+ if (width_arg.int_value < 0)
+ FMT_THROW(FormatError("negative width"));
+ value = width_arg.int_value;
+ break;
+ case Arg::UINT:
+ value = width_arg.uint_value;
+ break;
+ case Arg::LONG_LONG:
+ if (width_arg.long_long_value < 0)
+ FMT_THROW(FormatError("negative width"));
+ value = width_arg.long_long_value;
+ break;
+ case Arg::ULONG_LONG:
+ value = width_arg.ulong_long_value;
+ break;
+ default:
+ FMT_THROW(FormatError("width is not integer"));
+ }
+ unsigned max_int = (std::numeric_limits<int>::max)();
+ if (value > max_int)
+ FMT_THROW(FormatError("number is too big"));
+ spec.width_ = static_cast<int>(value);
+ }
+
+ // Parse precision.
+ if (*s == '.')
+ {
+ ++s;
+ spec.precision_ = 0;
+ if ('0' <= *s && *s <= '9')
+ {
+ spec.precision_ = internal::parse_nonnegative_int(s);
+ }
+ else if (*s == '{')
+ {
+ ++s;
+ Arg precision_arg = internal::is_name_start(*s) ? parse_arg_name(s) : parse_arg_index(s);
+ if (*s++ != '}')
+ FMT_THROW(FormatError("invalid format string"));
+ ULongLong value = 0;
+ switch (precision_arg.type)
+ {
+ case Arg::INT:
+ if (precision_arg.int_value < 0)
+ FMT_THROW(FormatError("negative precision"));
+ value = precision_arg.int_value;
+ break;
+ case Arg::UINT:
+ value = precision_arg.uint_value;
+ break;
+ case Arg::LONG_LONG:
+ if (precision_arg.long_long_value < 0)
+ FMT_THROW(FormatError("negative precision"));
+ value = precision_arg.long_long_value;
+ break;
+ case Arg::ULONG_LONG:
+ value = precision_arg.ulong_long_value;
+ break;
+ default:
+ FMT_THROW(FormatError("precision is not integer"));
+ }
+ unsigned max_int = (std::numeric_limits<int>::max)();
+ if (value > max_int)
+ FMT_THROW(FormatError("number is too big"));
+ spec.precision_ = static_cast<int>(value);
+ }
+ else
+ {
+ FMT_THROW(FormatError("missing precision specifier"));
+ }
+ if (arg.type <= Arg::LAST_INTEGER_TYPE || arg.type == Arg::POINTER)
+ {
+ FMT_THROW(FormatError(
+ fmt::format("precision not allowed in {} format specifier", arg.type == Arg::POINTER ? "pointer" : "integer")));
+ }
+ }
+
+ // Parse type.
+ if (*s != '}' && *s)
+ spec.type_ = static_cast<char>(*s++);
+ }
+
+ if (*s++ != '}')
+ FMT_THROW(FormatError("missing '}' in format string"));
+
+ // Format argument.
+ ArgFormatter(*this, spec, s - 1).visit(arg);
+ return s;
+}
+
+template<typename Char, typename AF>
+void BasicFormatter<Char, AF>::format(BasicCStringRef<Char> format_str)
+{
+ const Char *s = format_str.c_str();
+ const Char *start = s;
+ while (*s)
+ {
+ Char c = *s++;
+ if (c != '{' && c != '}')
+ continue;
+ if (*s == c)
+ {
+ write(writer_, start, s);
+ start = ++s;
+ continue;
+ }
+ if (c == '}')
+ FMT_THROW(FormatError("unmatched '}' in format string"));
+ write(writer_, start, s - 1);
+ internal::Arg arg = internal::is_name_start(*s) ? parse_arg_name(s) : parse_arg_index(s);
+ start = s = format(s, arg);
+ }
+ write(writer_, start, s);
+}
+
+template<typename Char, typename It>
+struct ArgJoin
+{
+ It first;
+ It last;
+ BasicCStringRef<Char> sep;
+
+ ArgJoin(It first, It last, const BasicCStringRef<Char> &sep)
+ : first(first)
+ , last(last)
+ , sep(sep)
+ {
+ }
+};
+
+template<typename It>
+ArgJoin<char, It> join(It first, It last, const BasicCStringRef<char> &sep)
+{
+ return ArgJoin<char, It>(first, last, sep);
+}
+
+template<typename It>
+ArgJoin<wchar_t, It> join(It first, It last, const BasicCStringRef<wchar_t> &sep)
+{
+ return ArgJoin<wchar_t, It>(first, last, sep);
+}
+
+#if FMT_HAS_GXX_CXX11
+template<typename Range>
+auto join(const Range &range, const BasicCStringRef<char> &sep) -> ArgJoin<char, decltype(std::begin(range))>
+{
+ return join(std::begin(range), std::end(range), sep);
+}
+
+template<typename Range>
+auto join(const Range &range, const BasicCStringRef<wchar_t> &sep) -> ArgJoin<wchar_t, decltype(std::begin(range))>
+{
+ return join(std::begin(range), std::end(range), sep);
+}
+#endif
+
+template<typename ArgFormatter, typename Char, typename It>
+void format_arg(fmt::BasicFormatter<Char, ArgFormatter> &f, const Char *&format_str, const ArgJoin<Char, It> &e)
+{
+ const Char *end = format_str;
+ if (*end == ':')
+ ++end;
+ while (*end && *end != '}')
+ ++end;
+ if (*end != '}')
+ FMT_THROW(FormatError("missing '}' in format string"));
+
+ It it = e.first;
+ if (it != e.last)
+ {
+ const Char *save = format_str;
+ f.format(format_str, internal::MakeArg<fmt::BasicFormatter<Char, ArgFormatter>>(*it++));
+ while (it != e.last)
+ {
+ f.writer().write(e.sep);
+ format_str = save;
+ f.format(format_str, internal::MakeArg<fmt::BasicFormatter<Char, ArgFormatter>>(*it++));
+ }
+ }
+ format_str = end + 1;
+}
+} // namespace fmt
+
+#if FMT_USE_USER_DEFINED_LITERALS
+namespace fmt {
+namespace internal {
+
+template<typename Char>
+struct UdlFormat
+{
+ const Char *str;
+
+ template<typename... Args>
+ auto operator()(Args &&... args) const -> decltype(format(str, std::forward<Args>(args)...))
+ {
+ return format(str, std::forward<Args>(args)...);
+ }
+};
+
+template<typename Char>
+struct UdlArg
+{
+ const Char *str;
+
+ template<typename T>
+ NamedArgWithType<Char, T> operator=(T &&value) const
+ {
+ return {str, std::forward<T>(value)};
+ }
+};
+
+} // namespace internal
+
+inline namespace literals {
+
+/**
+ \rst
+ C++11 literal equivalent of :func:`fmt::format`.
+
+ **Example**::
+
+ using namespace fmt::literals;
+ std::string message = "The answer is {}"_format(42);
+ \endrst
+ */
+inline internal::UdlFormat<char> operator"" _format(const char *s, std::size_t)
+{
+ return {s};
+}
+inline internal::UdlFormat<wchar_t> operator"" _format(const wchar_t *s, std::size_t)
+{
+ return {s};
+}
+
+/**
+ \rst
+ C++11 literal equivalent of :func:`fmt::arg`.
+
+ **Example**::
+
+ using namespace fmt::literals;
+ print("Elapsed time: {s:.2f} seconds", "s"_a=1.23);
+ \endrst
+ */
+inline internal::UdlArg<char> operator"" _a(const char *s, std::size_t)
+{
+ return {s};
+}
+inline internal::UdlArg<wchar_t> operator"" _a(const wchar_t *s, std::size_t)
+{
+ return {s};
+}
+
+} // namespace literals
+} // namespace fmt
+#endif // FMT_USE_USER_DEFINED_LITERALS
+
+// Restore warnings.
+#if FMT_GCC_VERSION >= 406
+#pragma GCC diagnostic pop
+#endif
+
+#if defined(__clang__) && !defined(FMT_ICC_VERSION)
+#pragma clang diagnostic pop
+#endif
+
+#ifdef FMT_HEADER_ONLY
+#define FMT_FUNC inline
+#include "format.cc"
+#else
+#define FMT_FUNC
+#endif
+
+#endif // FMT_FORMAT_H_
diff --git a/lib/spdlog/fmt/bundled/ostream.cc b/lib/spdlog/fmt/bundled/ostream.cc
new file mode 100644
index 0000000..2d443f7
--- /dev/null
+++ b/lib/spdlog/fmt/bundled/ostream.cc
@@ -0,0 +1,35 @@
+/*
+ Formatting library for C++ - std::ostream support
+
+ Copyright (c) 2012 - 2016, Victor Zverovich
+ All rights reserved.
+
+ For the license information refer to format.h.
+ */
+
+#include "ostream.h"
+
+namespace fmt {
+
+namespace internal {
+FMT_FUNC void write(std::ostream &os, Writer &w) {
+ const char *data = w.data();
+ typedef internal::MakeUnsigned<std::streamsize>::Type UnsignedStreamSize;
+ UnsignedStreamSize size = w.size();
+ UnsignedStreamSize max_size =
+ internal::to_unsigned((std::numeric_limits<std::streamsize>::max)());
+ do {
+ UnsignedStreamSize n = size <= max_size ? size : max_size;
+ os.write(data, static_cast<std::streamsize>(n));
+ data += n;
+ size -= n;
+ } while (size != 0);
+}
+}
+
+FMT_FUNC void print(std::ostream &os, CStringRef format_str, ArgList args) {
+ MemoryWriter w;
+ w.write(format_str, args);
+ internal::write(os, w);
+}
+} // namespace fmt
diff --git a/lib/spdlog/fmt/bundled/ostream.h b/lib/spdlog/fmt/bundled/ostream.h
new file mode 100644
index 0000000..ffa75ab
--- /dev/null
+++ b/lib/spdlog/fmt/bundled/ostream.h
@@ -0,0 +1,117 @@
+/*
+ Formatting library for C++ - std::ostream support
+
+ Copyright (c) 2012 - 2016, Victor Zverovich
+ All rights reserved.
+
+ For the license information refer to format.h.
+ */
+
+#ifndef FMT_OSTREAM_H_
+#define FMT_OSTREAM_H_
+
+#include "format.h"
+#include <ostream>
+
+namespace fmt {
+
+namespace internal {
+
+template<class Char>
+class FormatBuf : public std::basic_streambuf<Char>
+{
+private:
+ typedef typename std::basic_streambuf<Char>::int_type int_type;
+ typedef typename std::basic_streambuf<Char>::traits_type traits_type;
+
+ Buffer<Char> &buffer_;
+
+public:
+ FormatBuf(Buffer<Char> &buffer)
+ : buffer_(buffer)
+ {
+ }
+
+protected:
+ // The put-area is actually always empty. This makes the implementation
+ // simpler and has the advantage that the streambuf and the buffer are always
+ // in sync and sputc never writes into uninitialized memory. The obvious
+ // disadvantage is that each call to sputc always results in a (virtual) call
+ // to overflow. There is no disadvantage here for sputn since this always
+ // results in a call to xsputn.
+
+ int_type overflow(int_type ch = traits_type::eof()) FMT_OVERRIDE
+ {
+ if (!traits_type::eq_int_type(ch, traits_type::eof()))
+ buffer_.push_back(static_cast<Char>(ch));
+ return ch;
+ }
+
+ std::streamsize xsputn(const Char *s, std::streamsize count) FMT_OVERRIDE
+ {
+ buffer_.append(s, s + count);
+ return count;
+ }
+};
+
+Yes &convert(std::ostream &);
+
+struct DummyStream : std::ostream
+{
+ DummyStream(); // Suppress a bogus warning in MSVC.
+
+ // Hide all operator<< overloads from std::ostream.
+ template<typename T>
+ typename EnableIf<sizeof(T) == 0>::type operator<<(const T &);
+};
+
+No &operator<<(std::ostream &, int);
+
+template<typename T>
+struct ConvertToIntImpl<T, true>
+{
+ // Convert to int only if T doesn't have an overloaded operator<<.
+ enum
+ {
+ value = sizeof(convert(get<DummyStream>() << get<T>())) == sizeof(No)
+ };
+};
+
+// Write the content of w to os.
+FMT_API void write(std::ostream &os, Writer &w);
+} // namespace internal
+
+// Formats a value.
+template<typename Char, typename ArgFormatter_, typename T>
+void format_arg(BasicFormatter<Char, ArgFormatter_> &f, const Char *&format_str, const T &value)
+{
+ internal::MemoryBuffer<Char, internal::INLINE_BUFFER_SIZE> buffer;
+
+ internal::FormatBuf<Char> format_buf(buffer);
+ std::basic_ostream<Char> output(&format_buf);
+ output.exceptions(std::ios_base::failbit | std::ios_base::badbit);
+ output << value;
+
+ BasicStringRef<Char> str(&buffer[0], buffer.size());
+ typedef internal::MakeArg<BasicFormatter<Char>> MakeArg;
+ format_str = f.format(format_str, MakeArg(str));
+}
+
+/**
+ \rst
+ Prints formatted data to the stream *os*.
+
+ **Example**::
+
+ print(cerr, "Don't {}!", "panic");
+ \endrst
+ */
+FMT_API void print(std::ostream &os, CStringRef format_str, ArgList args);
+FMT_VARIADIC(void, print, std::ostream &, CStringRef)
+} // namespace fmt
+
+#ifdef FMT_HEADER_ONLY
+#include "ostream.cc"
+#endif
+
+#endif // FMT_OSTREAM_H_
diff --git a/lib/spdlog/fmt/bundled/posix.cc b/lib/spdlog/fmt/bundled/posix.cc
new file mode 100644
index 0000000..356668c
--- /dev/null
+++ b/lib/spdlog/fmt/bundled/posix.cc
@@ -0,0 +1,241 @@
+/*
+ A C++ interface to POSIX functions.
+
+ Copyright (c) 2012 - 2016, Victor Zverovich
+ All rights reserved.
+
+ For the license information refer to format.h.
+ */
+
+// Disable bogus MSVC warnings.
+#ifndef _CRT_SECURE_NO_WARNINGS
+# define _CRT_SECURE_NO_WARNINGS
+#endif
+
+#include "posix.h"
+
+#include <limits.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#ifndef _WIN32
+# include <unistd.h>
+#else
+# ifndef WIN32_LEAN_AND_MEAN
+# define WIN32_LEAN_AND_MEAN
+# endif
+# include <windows.h>
+# include <io.h>
+
+# define O_CREAT _O_CREAT
+# define O_TRUNC _O_TRUNC
+
+# ifndef S_IRUSR
+# define S_IRUSR _S_IREAD
+# endif
+
+# ifndef S_IWUSR
+# define S_IWUSR _S_IWRITE
+# endif
+
+# ifdef __MINGW32__
+# define _SH_DENYNO 0x40
+# endif
+
+#endif // _WIN32
+
+#ifdef fileno
+# undef fileno
+#endif
+
+namespace {
+#ifdef _WIN32
+// Return type of read and write functions.
+typedef int RWResult;
+
+// On Windows the count argument to read and write is unsigned, so convert
+// it from size_t preventing integer overflow.
+inline unsigned convert_rwcount(std::size_t count) {
+ return count <= UINT_MAX ? static_cast<unsigned>(count) : UINT_MAX;
+}
+#else
+// Return type of read and write functions.
+typedef ssize_t RWResult;
+
+inline std::size_t convert_rwcount(std::size_t count) { return count; }
+#endif
+}
+
+fmt::BufferedFile::~BufferedFile() FMT_NOEXCEPT {
+ if (file_ && FMT_SYSTEM(fclose(file_)) != 0)
+ fmt::report_system_error(errno, "cannot close file");
+}
+
+fmt::BufferedFile::BufferedFile(
+ fmt::CStringRef filename, fmt::CStringRef mode) {
+ FMT_RETRY_VAL(file_, FMT_SYSTEM(fopen(filename.c_str(), mode.c_str())), 0);
+ if (!file_)
+ FMT_THROW(SystemError(errno, "cannot open file {}", filename));
+}
+
+void fmt::BufferedFile::close() {
+ if (!file_)
+ return;
+ int result = FMT_SYSTEM(fclose(file_));
+ file_ = FMT_NULL;
+ if (result != 0)
+ FMT_THROW(SystemError(errno, "cannot close file"));
+}
+
+// A macro used to prevent expansion of fileno on broken versions of MinGW.
+#define FMT_ARGS
+
+int fmt::BufferedFile::fileno() const {
+ int fd = FMT_POSIX_CALL(fileno FMT_ARGS(file_));
+ if (fd == -1)
+ FMT_THROW(SystemError(errno, "cannot get file descriptor"));
+ return fd;
+}
+
+fmt::File::File(fmt::CStringRef path, int oflag) {
+ int mode = S_IRUSR | S_IWUSR;
+#if defined(_WIN32) && !defined(__MINGW32__)
+ fd_ = -1;
+ FMT_POSIX_CALL(sopen_s(&fd_, path.c_str(), oflag, _SH_DENYNO, mode));
+#else
+ FMT_RETRY(fd_, FMT_POSIX_CALL(open(path.c_str(), oflag, mode)));
+#endif
+ if (fd_ == -1)
+ FMT_THROW(SystemError(errno, "cannot open file {}", path));
+}
+
+fmt::File::~File() FMT_NOEXCEPT {
+ // Don't retry close in case of EINTR!
+ // See http://linux.derkeiler.com/Mailing-Lists/Kernel/2005-09/3000.html
+ if (fd_ != -1 && FMT_POSIX_CALL(close(fd_)) != 0)
+ fmt::report_system_error(errno, "cannot close file");
+}
+
+void fmt::File::close() {
+ if (fd_ == -1)
+ return;
+ // Don't retry close in case of EINTR!
+ // See http://linux.derkeiler.com/Mailing-Lists/Kernel/2005-09/3000.html
+ int result = FMT_POSIX_CALL(close(fd_));
+ fd_ = -1;
+ if (result != 0)
+ FMT_THROW(SystemError(errno, "cannot close file"));
+}
+
+fmt::LongLong fmt::File::size() const {
+#ifdef _WIN32
+ // Use GetFileSize instead of GetFileSizeEx for the case when _WIN32_WINNT
+ // is less than 0x0500 as is the case with some default MinGW builds.
+ // Both functions support large file sizes.
+ DWORD size_upper = 0;
+ HANDLE handle = reinterpret_cast<HANDLE>(_get_osfhandle(fd_));
+ DWORD size_lower = FMT_SYSTEM(GetFileSize(handle, &size_upper));
+ if (size_lower == INVALID_FILE_SIZE) {
+ DWORD error = GetLastError();
+ if (error != NO_ERROR)
+ FMT_THROW(WindowsError(GetLastError(), "cannot get file size"));
+ }
+ fmt::ULongLong long_size = size_upper;
+ return (long_size << sizeof(DWORD) * CHAR_BIT) | size_lower;
+#else
+ typedef struct stat Stat;
+ Stat file_stat = Stat();
+ if (FMT_POSIX_CALL(fstat(fd_, &file_stat)) == -1)
+ FMT_THROW(SystemError(errno, "cannot get file attributes"));
+ FMT_STATIC_ASSERT(sizeof(fmt::LongLong) >= sizeof(file_stat.st_size),
+ "return type of File::size is not large enough");
+ return file_stat.st_size;
+#endif
+}
+
+std::size_t fmt::File::read(void *buffer, std::size_t count) {
+ RWResult result = 0;
+ FMT_RETRY(result, FMT_POSIX_CALL(read(fd_, buffer, convert_rwcount(count))));
+ if (result < 0)
+ FMT_THROW(SystemError(errno, "cannot read from file"));
+ return internal::to_unsigned(result);
+}
+
+std::size_t fmt::File::write(const void *buffer, std::size_t count) {
+ RWResult result = 0;
+ FMT_RETRY(result, FMT_POSIX_CALL(write(fd_, buffer, convert_rwcount(count))));
+ if (result < 0)
+ FMT_THROW(SystemError(errno, "cannot write to file"));
+ return internal::to_unsigned(result);
+}
+
+fmt::File fmt::File::dup(int fd) {
+ // Don't retry as dup doesn't return EINTR.
+ // http://pubs.opengroup.org/onlinepubs/009695399/functions/dup.html
+ int new_fd = FMT_POSIX_CALL(dup(fd));
+ if (new_fd == -1)
+ FMT_THROW(SystemError(errno, "cannot duplicate file descriptor {}", fd));
+ return File(new_fd);
+}
+
+void fmt::File::dup2(int fd) {
+ int result = 0;
+ FMT_RETRY(result, FMT_POSIX_CALL(dup2(fd_, fd)));
+ if (result == -1) {
+ FMT_THROW(SystemError(errno,
+ "cannot duplicate file descriptor {} to {}", fd_, fd));
+ }
+}
+
+void fmt::File::dup2(int fd, ErrorCode &ec) FMT_NOEXCEPT {
+ int result = 0;
+ FMT_RETRY(result, FMT_POSIX_CALL(dup2(fd_, fd)));
+ if (result == -1)
+ ec = ErrorCode(errno);
+}
+
+void fmt::File::pipe(File &read_end, File &write_end) {
+ // Close the descriptors first to make sure that assignments don't throw
+ // and there are no leaks.
+ read_end.close();
+ write_end.close();
+ int fds[2] = {};
+#ifdef _WIN32
+ // Make the default pipe capacity same as on Linux 2.6.11+.
+ enum { DEFAULT_CAPACITY = 65536 };
+ int result = FMT_POSIX_CALL(pipe(fds, DEFAULT_CAPACITY, _O_BINARY));
+#else
+ // Don't retry as the pipe function doesn't return EINTR.
+ // http://pubs.opengroup.org/onlinepubs/009696799/functions/pipe.html
+ int result = FMT_POSIX_CALL(pipe(fds));
+#endif
+ if (result != 0)
+ FMT_THROW(SystemError(errno, "cannot create pipe"));
+ // The following assignments don't throw because read_fd and write_fd
+ // are closed.
+ read_end = File(fds[0]);
+ write_end = File(fds[1]);
+}
+
+fmt::BufferedFile fmt::File::fdopen(const char *mode) {
+ // Don't retry as fdopen doesn't return EINTR.
+ FILE *f = FMT_POSIX_CALL(fdopen(fd_, mode));
+ if (!f)
+ FMT_THROW(SystemError(errno, "cannot associate stream with file descriptor"));
+ BufferedFile file(f);
+ fd_ = -1;
+ return file;
+}
+
+long fmt::getpagesize() {
+#ifdef _WIN32
+ SYSTEM_INFO si;
+ GetSystemInfo(&si);
+ return si.dwPageSize;
+#else
+ long size = FMT_POSIX_CALL(sysconf(_SC_PAGESIZE));
+ if (size < 0)
+ FMT_THROW(SystemError(errno, "cannot get memory page size"));
+ return size;
+#endif
+}
diff --git a/lib/spdlog/fmt/bundled/posix.h b/lib/spdlog/fmt/bundled/posix.h
new file mode 100644
index 0000000..20af016
--- /dev/null
+++ b/lib/spdlog/fmt/bundled/posix.h
@@ -0,0 +1,423 @@
+/*
+ A C++ interface to POSIX functions.
+
+ Copyright (c) 2012 - 2016, Victor Zverovich
+ All rights reserved.
+
+ For the license information refer to format.h.
+ */
+
+#ifndef FMT_POSIX_H_
+#define FMT_POSIX_H_
+
+#if defined(__MINGW32__) || defined(__CYGWIN__)
+// Workaround MinGW bug https://sourceforge.net/p/mingw/bugs/2024/.
+#undef __STRICT_ANSI__
+#endif
+
+#include <errno.h>
+#include <fcntl.h> // for O_RDONLY
+#include <locale.h> // for locale_t
+#include <stdio.h>
+#include <stdlib.h> // for strtod_l
+
+#include <cstddef>
+
+#if defined __APPLE__ || defined(__FreeBSD__)
+#include <xlocale.h> // for LC_NUMERIC_MASK on OS X
+#endif
+
+#include "format.h"
+
+#ifndef FMT_POSIX
+#if defined(_WIN32) && !defined(__MINGW32__)
+// Fix warnings about deprecated symbols.
+#define FMT_POSIX(call) _##call
+#else
+#define FMT_POSIX(call) call
+#endif
+#endif
+
+// Calls to system functions are wrapped in FMT_SYSTEM for testability.
+#ifdef FMT_SYSTEM
+#define FMT_POSIX_CALL(call) FMT_SYSTEM(call)
+#else
+#define FMT_SYSTEM(call) call
+#ifdef _WIN32
+// Fix warnings about deprecated symbols.
+#define FMT_POSIX_CALL(call) ::_##call
+#else
+#define FMT_POSIX_CALL(call) ::call
+#endif
+#endif
+
+// Retries the expression while it evaluates to error_result and errno
+// equals to EINTR.
+#ifndef _WIN32
+#define FMT_RETRY_VAL(result, expression, error_result) \
+ do \
+ { \
+ result = (expression); \
+ } while (result == error_result && errno == EINTR)
+#else
+#define FMT_RETRY_VAL(result, expression, error_result) result = (expression)
+#endif
+
+#define FMT_RETRY(result, expression) FMT_RETRY_VAL(result, expression, -1)
+
+namespace fmt {
+
+// An error code.
+class ErrorCode
+{
+private:
+ int value_;
+
+public:
+ explicit ErrorCode(int value = 0) FMT_NOEXCEPT : value_(value) {}
+
+ int get() const FMT_NOEXCEPT
+ {
+ return value_;
+ }
+};
+
+// A buffered file.
+class BufferedFile
+{
+private:
+ FILE *file_;
+
+ friend class File;
+
+ explicit BufferedFile(FILE *f)
+ : file_(f)
+ {
+ }
+
+public:
+ // Constructs a BufferedFile object which doesn't represent any file.
+ BufferedFile() FMT_NOEXCEPT : file_(FMT_NULL) {}
+
+ // Destroys the object closing the file it represents if any.
+ FMT_API ~BufferedFile() FMT_NOEXCEPT;
+
+#if !FMT_USE_RVALUE_REFERENCES
+ // Emulate a move constructor and a move assignment operator if rvalue
+ // references are not supported.
+
+private:
+ // A proxy object to emulate a move constructor.
+ // It is private to make it impossible call operator Proxy directly.
+ struct Proxy
+ {
+ FILE *file;
+ };
+
+public:
+ // A "move constructor" for moving from a temporary.
+ BufferedFile(Proxy p) FMT_NOEXCEPT : file_(p.file) {}
+
+ // A "move constructor" for moving from an lvalue.
+ BufferedFile(BufferedFile &f) FMT_NOEXCEPT : file_(f.file_)
+ {
+ f.file_ = FMT_NULL;
+ }
+
+ // A "move assignment operator" for moving from a temporary.
+ BufferedFile &operator=(Proxy p)
+ {
+ close();
+ file_ = p.file;
+ return *this;
+ }
+
+ // A "move assignment operator" for moving from an lvalue.
+ BufferedFile &operator=(BufferedFile &other)
+ {
+ close();
+ file_ = other.file_;
+ other.file_ = FMT_NULL;
+ return *this;
+ }
+
+ // Returns a proxy object for moving from a temporary:
+ // BufferedFile file = BufferedFile(...);
+ operator Proxy() FMT_NOEXCEPT
+ {
+ Proxy p = {file_};
+ file_ = FMT_NULL;
+ return p;
+ }
+
+#else
+private:
+ FMT_DISALLOW_COPY_AND_ASSIGN(BufferedFile);
+
+public:
+ BufferedFile(BufferedFile &&other) FMT_NOEXCEPT : file_(other.file_)
+ {
+ other.file_ = FMT_NULL;
+ }
+
+ BufferedFile &operator=(BufferedFile &&other)
+ {
+ close();
+ file_ = other.file_;
+ other.file_ = FMT_NULL;
+ return *this;
+ }
+#endif
+
+ // Opens a file.
+ FMT_API BufferedFile(CStringRef filename, CStringRef mode);
+
+ // Closes the file.
+ FMT_API void close();
+
+ // Returns the pointer to a FILE object representing this file.
+ FILE *get() const FMT_NOEXCEPT
+ {
+ return file_;
+ }
+
+ // We place parentheses around fileno to workaround a bug in some versions
+ // of MinGW that define fileno as a macro.
+ FMT_API int(fileno)() const;
+
+ void print(CStringRef format_str, const ArgList &args)
+ {
+ fmt::print(file_, format_str, args);
+ }
+ FMT_VARIADIC(void, print, CStringRef)
+};
+
+// A file. Closed file is represented by a File object with descriptor -1.
+// Methods that are not declared with FMT_NOEXCEPT may throw
+// fmt::SystemError in case of failure. Note that some errors such as
+// closing the file multiple times will cause a crash on Windows rather
+// than an exception. You can get standard behavior by overriding the
+// invalid parameter handler with _set_invalid_parameter_handler.
+class File
+{
+private:
+ int fd_; // File descriptor.
+
+ // Constructs a File object with a given descriptor.
+ explicit File(int fd)
+ : fd_(fd)
+ {
+ }
+
+public:
+ // Possible values for the oflag argument to the constructor.
+ enum
+ {
+ RDONLY = FMT_POSIX(O_RDONLY), // Open for reading only.
+ WRONLY = FMT_POSIX(O_WRONLY), // Open for writing only.
+ RDWR = FMT_POSIX(O_RDWR) // Open for reading and writing.
+ };
+
+ // Constructs a File object which doesn't represent any file.
+ File() FMT_NOEXCEPT : fd_(-1) {}
+
+ // Opens a file and constructs a File object representing this file.
+ FMT_API File(CStringRef path, int oflag);
+
+#if !FMT_USE_RVALUE_REFERENCES
+ // Emulate a move constructor and a move assignment operator if rvalue
+ // references are not supported.
+
+private:
+ // A proxy object to emulate a move constructor.
+ // It is private to make it impossible call operator Proxy directly.
+ struct Proxy
+ {
+ int fd;
+ };
+
+public:
+ // A "move constructor" for moving from a temporary.
+ File(Proxy p) FMT_NOEXCEPT : fd_(p.fd) {}
+
+ // A "move constructor" for moving from an lvalue.
+ File(File &other) FMT_NOEXCEPT : fd_(other.fd_)
+ {
+ other.fd_ = -1;
+ }
+
+ // A "move assignment operator" for moving from a temporary.
+ File &operator=(Proxy p)
+ {
+ close();
+ fd_ = p.fd;
+ return *this;
+ }
+
+ // A "move assignment operator" for moving from an lvalue.
+ File &operator=(File &other)
+ {
+ close();
+ fd_ = other.fd_;
+ other.fd_ = -1;
+ return *this;
+ }
+
+ // Returns a proxy object for moving from a temporary:
+ // File file = File(...);
+ operator Proxy() FMT_NOEXCEPT
+ {
+ Proxy p = {fd_};
+ fd_ = -1;
+ return p;
+ }
+
+#else
+private:
+ FMT_DISALLOW_COPY_AND_ASSIGN(File);
+
+public:
+ File(File &&other) FMT_NOEXCEPT : fd_(other.fd_)
+ {
+ other.fd_ = -1;
+ }
+
+ File &operator=(File &&other)
+ {
+ close();
+ fd_ = other.fd_;
+ other.fd_ = -1;
+ return *this;
+ }
+#endif
+
+ // Destroys the object closing the file it represents if any.
+ FMT_API ~File() FMT_NOEXCEPT;
+
+ // Returns the file descriptor.
+ int descriptor() const FMT_NOEXCEPT
+ {
+ return fd_;
+ }
+
+ // Closes the file.
+ FMT_API void close();
+
+ // Returns the file size. The size has signed type for consistency with
+ // stat::st_size.
+ FMT_API LongLong size() const;
+
+ // Attempts to read count bytes from the file into the specified buffer.
+ FMT_API std::size_t read(void *buffer, std::size_t count);
+
+ // Attempts to write count bytes from the specified buffer to the file.
+ FMT_API std::size_t write(const void *buffer, std::size_t count);
+
+ // Duplicates a file descriptor with the dup function and returns
+ // the duplicate as a file object.
+ FMT_API static File dup(int fd);
+
+ // Makes fd be the copy of this file descriptor, closing fd first if
+ // necessary.
+ FMT_API void dup2(int fd);
+
+ // Makes fd be the copy of this file descriptor, closing fd first if
+ // necessary.
+ FMT_API void dup2(int fd, ErrorCode &ec) FMT_NOEXCEPT;
+
+ // Creates a pipe setting up read_end and write_end file objects for reading
+ // and writing respectively.
+ FMT_API static void pipe(File &read_end, File &write_end);
+
+ // Creates a BufferedFile object associated with this file and detaches
+ // this File object from the file.
+ FMT_API BufferedFile fdopen(const char *mode);
+};
+
+// Returns the memory page size.
+long getpagesize();
+
+#if (defined(LC_NUMERIC_MASK) || defined(_MSC_VER)) && !defined(__ANDROID__) && !defined(__CYGWIN__)
+#define FMT_LOCALE
+#endif
+
+#ifdef FMT_LOCALE
+// A "C" numeric locale.
+class Locale
+{
+private:
+#ifdef _MSC_VER
+ typedef _locale_t locale_t;
+
+ enum
+ {
+ LC_NUMERIC_MASK = LC_NUMERIC
+ };
+
+ static locale_t newlocale(int category_mask, const char *locale, locale_t)
+ {
+ return _create_locale(category_mask, locale);
+ }
+
+ static void freelocale(locale_t locale)
+ {
+ _free_locale(locale);
+ }
+
+ static double strtod_l(const char *nptr, char **endptr, _locale_t locale)
+ {
+ return _strtod_l(nptr, endptr, locale);
+ }
+#endif
+
+ locale_t locale_;
+
+ FMT_DISALLOW_COPY_AND_ASSIGN(Locale);
+
+public:
+ typedef locale_t Type;
+
+ Locale()
+ : locale_(newlocale(LC_NUMERIC_MASK, "C", FMT_NULL))
+ {
+ if (!locale_)
+ FMT_THROW(fmt::SystemError(errno, "cannot create locale"));
+ }
+ ~Locale()
+ {
+ freelocale(locale_);
+ }
+
+ Type get() const
+ {
+ return locale_;
+ }
+
+ // Converts string to floating-point number and advances str past the end
+ // of the parsed input.
+ double strtod(const char *&str) const
+ {
+ char *end = FMT_NULL;
+ double result = strtod_l(str, &end, locale_);
+ str = end;
+ return result;
+ }
+};
+#endif // FMT_LOCALE
+} // namespace fmt
+
+#if !FMT_USE_RVALUE_REFERENCES
+namespace std {
+// For compatibility with C++98.
+inline fmt::BufferedFile &move(fmt::BufferedFile &f)
+{
+ return f;
+}
+inline fmt::File &move(fmt::File &f)
+{
+ return f;
+}
+} // namespace std
+#endif
+
+#endif // FMT_POSIX_H_
diff --git a/lib/spdlog/fmt/bundled/printf.cc b/lib/spdlog/fmt/bundled/printf.cc
new file mode 100644
index 0000000..95d7a36
--- /dev/null
+++ b/lib/spdlog/fmt/bundled/printf.cc
@@ -0,0 +1,32 @@
+/*
+ Formatting library for C++
+
+ Copyright (c) 2012 - 2016, Victor Zverovich
+ All rights reserved.
+
+ For the license information refer to format.h.
+ */
+
+#include "format.h"
+#include "printf.h"
+
+namespace fmt {
+
+template <typename Char>
+void printf(BasicWriter<Char> &w, BasicCStringRef<Char> format, ArgList args);
+
+FMT_FUNC int fprintf(std::FILE *f, CStringRef format, ArgList args) {
+ MemoryWriter w;
+ printf(w, format, args);
+ std::size_t size = w.size();
+ return std::fwrite(w.data(), 1, size, f) < size ? -1 : static_cast<int>(size);
+}
+
+#ifndef FMT_HEADER_ONLY
+
+template void PrintfFormatter<char>::format(CStringRef format);
+template void PrintfFormatter<wchar_t>::format(WCStringRef format);
+
+#endif // FMT_HEADER_ONLY
+
+} // namespace fmt
diff --git a/lib/spdlog/fmt/bundled/printf.h b/lib/spdlog/fmt/bundled/printf.h
new file mode 100644
index 0000000..679e8fc
--- /dev/null
+++ b/lib/spdlog/fmt/bundled/printf.h
@@ -0,0 +1,723 @@
+/*
+ Formatting library for C++
+
+ Copyright (c) 2012 - 2016, Victor Zverovich
+ All rights reserved.
+
+ For the license information refer to format.h.
+ */
+
+#ifndef FMT_PRINTF_H_
+#define FMT_PRINTF_H_
+
+#include <algorithm> // std::fill_n
+#include <limits> // std::numeric_limits
+
+#include "ostream.h"
+
+namespace fmt {
+namespace internal {
+
+// Checks if a value fits in int - used to avoid warnings about comparing
+// signed and unsigned integers.
+template<bool IsSigned>
+struct IntChecker
+{
+ template<typename T>
+ static bool fits_in_int(T value)
+ {
+ unsigned max = std::numeric_limits<int>::max();
+ return value <= max;
+ }
+ static bool fits_in_int(bool)
+ {
+ return true;
+ }
+};
+
+template<>
+struct IntChecker<true>
+{
+ template<typename T>
+ static bool fits_in_int(T value)
+ {
+ return value >= std::numeric_limits<int>::min() && value <= std::numeric_limits<int>::max();
+ }
+ static bool fits_in_int(int)
+ {
+ return true;
+ }
+};
+
+class PrecisionHandler : public ArgVisitor<PrecisionHandler, int>
+{
+public:
+ void report_unhandled_arg()
+ {
+ FMT_THROW(FormatError("precision is not integer"));
+ }
+
+ template<typename T>
+ int visit_any_int(T value)
+ {
+ if (!IntChecker<std::numeric_limits<T>::is_signed>::fits_in_int(value))
+ FMT_THROW(FormatError("number is too big"));
+ return static_cast<int>(value);
+ }
+};
+
+// IsZeroInt::visit(arg) returns true iff arg is a zero integer.
+class IsZeroInt : public ArgVisitor<IsZeroInt, bool>
+{
+public:
+ template<typename T>
+ bool visit_any_int(T value)
+ {
+ return value == 0;
+ }
+};
+
+// returns the default type for format specific "%s"
+class DefaultType : public ArgVisitor<DefaultType, char>
+{
+public:
+ char visit_char(int)
+ {
+ return 'c';
+ }
+
+ char visit_bool(bool)
+ {
+ return 's';
+ }
+
+ char visit_pointer(const void *)
+ {
+ return 'p';
+ }
+
+ template<typename T>
+ char visit_any_int(T)
+ {
+ return 'd';
+ }
+
+ template<typename T>
+ char visit_any_double(T)
+ {
+ return 'g';
+ }
+
+ char visit_unhandled_arg()
+ {
+ return 's';
+ }
+};
+
+template<typename T, typename U>
+struct is_same
+{
+ enum
+ {
+ value = 0
+ };
+};
+
+template<typename T>
+struct is_same<T, T>
+{
+ enum
+ {
+ value = 1
+ };
+};
+
+// An argument visitor that converts an integer argument to T for printf,
+// if T is an integral type. If T is void, the argument is converted to
+// corresponding signed or unsigned type depending on the type specifier:
+// 'd' and 'i' - signed, other - unsigned)
+template<typename T = void>
+class ArgConverter : public ArgVisitor<ArgConverter<T>, void>
+{
+private:
+ internal::Arg &arg_;
+ wchar_t type_;
+
+ FMT_DISALLOW_COPY_AND_ASSIGN(ArgConverter);
+
+public:
+ ArgConverter(internal::Arg &arg, wchar_t type)
+ : arg_(arg)
+ , type_(type)
+ {
+ }
+
+ void visit_bool(bool value)
+ {
+ if (type_ != 's')
+ visit_any_int(value);
+ }
+
+ void visit_char(int value)
+ {
+ if (type_ != 's')
+ visit_any_int(value);
+ }
+
+ template<typename U>
+ void visit_any_int(U value)
+ {
+ bool is_signed = type_ == 'd' || type_ == 'i';
+ if (type_ == 's')
+ {
+ is_signed = std::numeric_limits<U>::is_signed;
+ }
+
+ using internal::Arg;
+ typedef typename internal::Conditional<is_same<T, void>::value, U, T>::type TargetType;
+ if (const_check(sizeof(TargetType) <= sizeof(int)))
+ {
+ // Extra casts are used to silence warnings.
+ if (is_signed)
+ {
+ arg_.type = Arg::INT;
+ arg_.int_value = static_cast<int>(static_cast<TargetType>(value));
+ }
+ else
+ {
+ arg_.type = Arg::UINT;
+ typedef typename internal::MakeUnsigned<TargetType>::Type Unsigned;
+ arg_.uint_value = static_cast<unsigned>(static_cast<Unsigned>(value));
+ }
+ }
+ else
+ {
+ if (is_signed)
+ {
+ arg_.type = Arg::LONG_LONG;
+ // glibc's printf doesn't sign extend arguments of smaller types:
+ // std::printf("%lld", -42); // prints "4294967254"
+ // but we don't have to do the same because it's a UB.
+ arg_.long_long_value = static_cast<LongLong>(value);
+ }
+ else
+ {
+ arg_.type = Arg::ULONG_LONG;
+ arg_.ulong_long_value = static_cast<typename internal::MakeUnsigned<U>::Type>(value);
+ }
+ }
+ }
+};
+
+// Converts an integer argument to char for printf.
+class CharConverter : public ArgVisitor<CharConverter, void>
+{
+private:
+ internal::Arg &arg_;
+
+ FMT_DISALLOW_COPY_AND_ASSIGN(CharConverter);
+
+public:
+ explicit CharConverter(internal::Arg &arg)
+ : arg_(arg)
+ {
+ }
+
+ template<typename T>
+ void visit_any_int(T value)
+ {
+ arg_.type = internal::Arg::CHAR;
+ arg_.int_value = static_cast<char>(value);
+ }
+};
+
+// Checks if an argument is a valid printf width specifier and sets
+// left alignment if it is negative.
+class WidthHandler : public ArgVisitor<WidthHandler, unsigned>
+{
+private:
+ FormatSpec &spec_;
+
+ FMT_DISALLOW_COPY_AND_ASSIGN(WidthHandler);
+
+public:
+ explicit WidthHandler(FormatSpec &spec)
+ : spec_(spec)
+ {
+ }
+
+ void report_unhandled_arg()
+ {
+ FMT_THROW(FormatError("width is not integer"));
+ }
+
+ template<typename T>
+ unsigned visit_any_int(T value)
+ {
+ typedef typename internal::IntTraits<T>::MainType UnsignedType;
+ UnsignedType width = static_cast<UnsignedType>(value);
+ if (internal::is_negative(value))
+ {
+ spec_.align_ = ALIGN_LEFT;
+ width = 0 - width;
+ }
+ unsigned int_max = std::numeric_limits<int>::max();
+ if (width > int_max)
+ FMT_THROW(FormatError("number is too big"));
+ return static_cast<unsigned>(width);
+ }
+};
+} // namespace internal
+
+/**
+ \rst
+ A ``printf`` argument formatter based on the `curiously recurring template
+ pattern <http://en.wikipedia.org/wiki/Curiously_recurring_template_pattern>`_.
+
+ To use `~fmt::BasicPrintfArgFormatter` define a subclass that implements some
+ or all of the visit methods with the same signatures as the methods in
+ `~fmt::ArgVisitor`, for example, `~fmt::ArgVisitor::visit_int()`.
+ Pass the subclass as the *Impl* template parameter. When a formatting
+ function processes an argument, it will dispatch to a visit method
+ specific to the argument type. For example, if the argument type is
+ ``double`` then the `~fmt::ArgVisitor::visit_double()` method of a subclass
+ will be called. If the subclass doesn't contain a method with this signature,
+ then a corresponding method of `~fmt::BasicPrintfArgFormatter` or its
+ superclass will be called.
+ \endrst
+ */
+template<typename Impl, typename Char, typename Spec>
+class BasicPrintfArgFormatter : public internal::ArgFormatterBase<Impl, Char, Spec>
+{
+private:
+ void write_null_pointer()
+ {
+ this->spec().type_ = 0;
+ this->write("(nil)");
+ }
+
+ typedef internal::ArgFormatterBase<Impl, Char, Spec> Base;
+
+public:
+ /**
+ \rst
+ Constructs an argument formatter object.
+ *writer* is a reference to the output writer and *spec* contains format
+ specifier information for standard argument types.
+ \endrst
+ */
+ BasicPrintfArgFormatter(BasicWriter<Char> &w, Spec &s)
+ : internal::ArgFormatterBase<Impl, Char, Spec>(w, s)
+ {
+ }
+
+ /** Formats an argument of type ``bool``. */
+ void visit_bool(bool value)
+ {
+ Spec &fmt_spec = this->spec();
+ if (fmt_spec.type_ != 's')
+ return this->visit_any_int(value);
+ fmt_spec.type_ = 0;
+ this->write(value);
+ }
+
+ /** Formats a character. */
+ void visit_char(int value)
+ {
+ const Spec &fmt_spec = this->spec();
+ BasicWriter<Char> &w = this->writer();
+ if (fmt_spec.type_ && fmt_spec.type_ != 'c')
+ w.write_int(value, fmt_spec);
+ typedef typename BasicWriter<Char>::CharPtr CharPtr;
+ CharPtr out = CharPtr();
+ if (fmt_spec.width_ > 1)
+ {
+ Char fill = ' ';
+ out = w.grow_buffer(fmt_spec.width_);
+ if (fmt_spec.align_ != ALIGN_LEFT)
+ {
+ std::fill_n(out, fmt_spec.width_ - 1, fill);
+ out += fmt_spec.width_ - 1;
+ }
+ else
+ {
+ std::fill_n(out + 1, fmt_spec.width_ - 1, fill);
+ }
+ }
+ else
+ {
+ out = w.grow_buffer(1);
+ }
+ *out = static_cast<Char>(value);
+ }
+
+ /** Formats a null-terminated C string. */
+ void visit_cstring(const char *value)
+ {
+ if (value)
+ Base::visit_cstring(value);
+ else if (this->spec().type_ == 'p')
+ write_null_pointer();
+ else
+ this->write("(null)");
+ }
+
+ /** Formats a pointer. */
+ void visit_pointer(const void *value)
+ {
+ if (value)
+ return Base::visit_pointer(value);
+ this->spec().type_ = 0;
+ write_null_pointer();
+ }
+
+ /** Formats an argument of a custom (user-defined) type. */
+ void visit_custom(internal::Arg::CustomValue c)
+ {
+ BasicFormatter<Char> formatter(ArgList(), this->writer());
+ const Char format_str[] = {'}', 0};
+ const Char *format = format_str;
+ c.format(&formatter, c.value, &format);
+ }
+};
+
+/** The default printf argument formatter. */
+template<typename Char>
+class PrintfArgFormatter : public BasicPrintfArgFormatter<PrintfArgFormatter<Char>, Char, FormatSpec>
+{
+public:
+ /** Constructs an argument formatter object. */
+ PrintfArgFormatter(BasicWriter<Char> &w, FormatSpec &s)
+ : BasicPrintfArgFormatter<PrintfArgFormatter<Char>, Char, FormatSpec>(w, s)
+ {
+ }
+};
+
+/** This template formats data and writes the output to a writer. */
+template<typename Char, typename ArgFormatter = PrintfArgFormatter<Char>>
+class PrintfFormatter : private internal::FormatterBase
+{
+private:
+ BasicWriter<Char> &writer_;
+
+ void parse_flags(FormatSpec &spec, const Char *&s);
+
+ // Returns the argument with specified index or, if arg_index is equal
+ // to the maximum unsigned value, the next argument.
+ internal::Arg get_arg(const Char *s, unsigned arg_index = (std::numeric_limits<unsigned>::max)());
+
+ // Parses argument index, flags and width and returns the argument index.
+ unsigned parse_header(const Char *&s, FormatSpec &spec);
+
+public:
+ /**
+ \rst
+ Constructs a ``PrintfFormatter`` object. References to the arguments and
+ the writer are stored in the formatter object so make sure they have
+ appropriate lifetimes.
+ \endrst
+ */
+ explicit PrintfFormatter(const ArgList &al, BasicWriter<Char> &w)
+ : FormatterBase(al)
+ , writer_(w)
+ {
+ }
+
+ /** Formats stored arguments and writes the output to the writer. */
+ void format(BasicCStringRef<Char> format_str);
+};
+
+template<typename Char, typename AF>
+void PrintfFormatter<Char, AF>::parse_flags(FormatSpec &spec, const Char *&s)
+{
+ for (;;)
+ {
+ switch (*s++)
+ {
+ case '-':
+ spec.align_ = ALIGN_LEFT;
+ break;
+ case '+':
+ spec.flags_ |= SIGN_FLAG | PLUS_FLAG;
+ break;
+ case '0':
+ spec.fill_ = '0';
+ break;
+ case ' ':
+ spec.flags_ |= SIGN_FLAG;
+ break;
+ case '#':
+ spec.flags_ |= HASH_FLAG;
+ break;
+ default:
+ --s;
+ return;
+ }
+ }
+}
+
+template<typename Char, typename AF>
+internal::Arg PrintfFormatter<Char, AF>::get_arg(const Char *s, unsigned arg_index)
+{
+ (void)s;
+ const char *error = FMT_NULL;
+ internal::Arg arg = arg_index == std::numeric_limits<unsigned>::max() ? next_arg(error) : FormatterBase::get_arg(arg_index - 1, error);
+ if (error)
+ FMT_THROW(FormatError(!*s ? "invalid format string" : error));
+ return arg;
+}
+
+template<typename Char, typename AF>
+unsigned PrintfFormatter<Char, AF>::parse_header(const Char *&s, FormatSpec &spec)
+{
+ unsigned arg_index = std::numeric_limits<unsigned>::max();
+ Char c = *s;
+ if (c >= '0' && c <= '9')
+ {
+ // Parse an argument index (if followed by '$') or a width possibly
+ // preceded with '0' flag(s).
+ unsigned value = internal::parse_nonnegative_int(s);
+ if (*s == '$') // value is an argument index
+ {
+ ++s;
+ arg_index = value;
+ }
+ else
+ {
+ if (c == '0')
+ spec.fill_ = '0';
+ if (value != 0)
+ {
+ // Nonzero value means that we parsed width and don't need to
+ // parse it or flags again, so return now.
+ spec.width_ = value;
+ return arg_index;
+ }
+ }
+ }
+ parse_flags(spec, s);
+ // Parse width.
+ if (*s >= '0' && *s <= '9')
+ {
+ spec.width_ = internal::parse_nonnegative_int(s);
+ }
+ else if (*s == '*')
+ {
+ ++s;
+ spec.width_ = internal::WidthHandler(spec).visit(get_arg(s));
+ }
+ return arg_index;
+}
+
+template<typename Char, typename AF>
+void PrintfFormatter<Char, AF>::format(BasicCStringRef<Char> format_str)
+{
+ const Char *start = format_str.c_str();
+ const Char *s = start;
+ while (*s)
+ {
+ Char c = *s++;
+ if (c != '%')
+ continue;
+ if (*s == c)
+ {
+ write(writer_, start, s);
+ start = ++s;
+ continue;
+ }
+ write(writer_, start, s - 1);
+
+ FormatSpec spec;
+ spec.align_ = ALIGN_RIGHT;
+
+ // Parse argument index, flags and width.
+ unsigned arg_index = parse_header(s, spec);
+
+ // Parse precision.
+ if (*s == '.')
+ {
+ ++s;
+ if ('0' <= *s && *s <= '9')
+ {
+ spec.precision_ = static_cast<int>(internal::parse_nonnegative_int(s));
+ }
+ else if (*s == '*')
+ {
+ ++s;
+ spec.precision_ = internal::PrecisionHandler().visit(get_arg(s));
+ }
+ else
+ {
+ spec.precision_ = 0;
+ }
+ }
+
+ using internal::Arg;
+ Arg arg = get_arg(s, arg_index);
+ if (spec.flag(HASH_FLAG) && internal::IsZeroInt().visit(arg))
+ spec.flags_ &= ~internal::to_unsigned<int>(HASH_FLAG);
+ if (spec.fill_ == '0')
+ {
+ if (arg.type <= Arg::LAST_NUMERIC_TYPE)
+ spec.align_ = ALIGN_NUMERIC;
+ else
+ spec.fill_ = ' '; // Ignore '0' flag for non-numeric types.
+ }
+
+ // Parse length and convert the argument to the required type.
+ using internal::ArgConverter;
+ switch (*s++)
+ {
+ case 'h':
+ if (*s == 'h')
+ ArgConverter<signed char>(arg, *++s).visit(arg);
+ else
+ ArgConverter<short>(arg, *s).visit(arg);
+ break;
+ case 'l':
+ if (*s == 'l')
+ ArgConverter<fmt::LongLong>(arg, *++s).visit(arg);
+ else
+ ArgConverter<long>(arg, *s).visit(arg);
+ break;
+ case 'j':
+ ArgConverter<intmax_t>(arg, *s).visit(arg);
+ break;
+ case 'z':
+ ArgConverter<std::size_t>(arg, *s).visit(arg);
+ break;
+ case 't':
+ ArgConverter<std::ptrdiff_t>(arg, *s).visit(arg);
+ break;
+ case 'L':
+ // printf produces garbage when 'L' is omitted for long double, no
+ // need to do the same.
+ break;
+ default:
+ --s;
+ ArgConverter<void>(arg, *s).visit(arg);
+ }
+
+ // Parse type.
+ if (!*s)
+ FMT_THROW(FormatError("invalid format string"));
+ spec.type_ = static_cast<char>(*s++);
+
+ if (spec.type_ == 's')
+ {
+ // set the format type to the default if 's' is specified
+ spec.type_ = internal::DefaultType().visit(arg);
+ }
+
+ if (arg.type <= Arg::LAST_INTEGER_TYPE)
+ {
+ // Normalize type.
+ switch (spec.type_)
+ {
+ case 'i':
+ case 'u':
+ spec.type_ = 'd';
+ break;
+ case 'c':
+ // TODO: handle wchar_t
+ internal::CharConverter(arg).visit(arg);
+ break;
+ }
+ }
+
+ start = s;
+
+ // Format argument.
+ AF(writer_, spec).visit(arg);
+ }
+ write(writer_, start, s);
+}
+
+inline void printf(Writer &w, CStringRef format, ArgList args)
+{
+ PrintfFormatter<char>(args, w).format(format);
+}
+FMT_VARIADIC(void, printf, Writer &, CStringRef)
+
+inline void printf(WWriter &w, WCStringRef format, ArgList args)
+{
+ PrintfFormatter<wchar_t>(args, w).format(format);
+}
+FMT_VARIADIC(void, printf, WWriter &, WCStringRef)
+
+/**
+ \rst
+ Formats arguments and returns the result as a string.
+
+ **Example**::
+
+ std::string message = fmt::sprintf("The answer is %d", 42);
+ \endrst
+*/
+inline std::string sprintf(CStringRef format, ArgList args)
+{
+ MemoryWriter w;
+ printf(w, format, args);
+ return w.str();
+}
+FMT_VARIADIC(std::string, sprintf, CStringRef)
+
+inline std::wstring sprintf(WCStringRef format, ArgList args)
+{
+ WMemoryWriter w;
+ printf(w, format, args);
+ return w.str();
+}
+FMT_VARIADIC_W(std::wstring, sprintf, WCStringRef)
+
+/**
+ \rst
+ Prints formatted data to the file *f*.
+
+ **Example**::
+
+ fmt::fprintf(stderr, "Don't %s!", "panic");
+ \endrst
+ */
+FMT_API int fprintf(std::FILE *f, CStringRef format, ArgList args);
+FMT_VARIADIC(int, fprintf, std::FILE *, CStringRef)
+
+/**
+ \rst
+ Prints formatted data to ``stdout``.
+
+ **Example**::
+
+ fmt::printf("Elapsed time: %.2f seconds", 1.23);
+ \endrst
+ */
+inline int printf(CStringRef format, ArgList args)
+{
+ return fprintf(stdout, format, args);
+}
+FMT_VARIADIC(int, printf, CStringRef)
+
+/**
+ \rst
+ Prints formatted data to the stream *os*.
+
+ **Example**::
+
+ fprintf(cerr, "Don't %s!", "panic");
+ \endrst
+ */
+inline int fprintf(std::ostream &os, CStringRef format_str, ArgList args)
+{
+ MemoryWriter w;
+ printf(w, format_str, args);
+ internal::write(os, w);
+ return static_cast<int>(w.size());
+}
+FMT_VARIADIC(int, fprintf, std::ostream &, CStringRef)
+} // namespace fmt
+
+#ifdef FMT_HEADER_ONLY
+#include "printf.cc"
+#endif
+
+#endif // FMT_PRINTF_H_
diff --git a/lib/spdlog/fmt/bundled/time.h b/lib/spdlog/fmt/bundled/time.h
new file mode 100644
index 0000000..1d4210c
--- /dev/null
+++ b/lib/spdlog/fmt/bundled/time.h
@@ -0,0 +1,188 @@
+/*
+ Formatting library for C++ - time formatting
+
+ Copyright (c) 2012 - 2016, Victor Zverovich
+ All rights reserved.
+
+ For the license information refer to format.h.
+ */
+
+#ifndef FMT_TIME_H_
+#define FMT_TIME_H_
+
+#include "format.h"
+#include <ctime>
+
+#ifdef _MSC_VER
+#pragma warning(push)
+#pragma warning(disable : 4702) // unreachable code
+#pragma warning(disable : 4996) // "deprecated" functions
+#endif
+
+namespace fmt {
+template<typename ArgFormatter>
+void format_arg(BasicFormatter<char, ArgFormatter> &f, const char *&format_str, const std::tm &tm)
+{
+ if (*format_str == ':')
+ ++format_str;
+ const char *end = format_str;
+ while (*end && *end != '}')
+ ++end;
+ if (*end != '}')
+ FMT_THROW(FormatError("missing '}' in format string"));
+ internal::MemoryBuffer<char, internal::INLINE_BUFFER_SIZE> format;
+ format.append(format_str, end + 1);
+ format[format.size() - 1] = '\0';
+ Buffer<char> &buffer = f.writer().buffer();
+ std::size_t start = buffer.size();
+ for (;;)
+ {
+ std::size_t size = buffer.capacity() - start;
+ std::size_t count = std::strftime(&buffer[start], size, &format[0], &tm);
+ if (count != 0)
+ {
+ buffer.resize(start + count);
+ break;
+ }
+ if (size >= format.size() * 256)
+ {
+ // If the buffer is 256 times larger than the format string, assume
+ // that `strftime` gives an empty result. There doesn't seem to be a
+ // better way to distinguish the two cases:
+ // https://github.com/fmtlib/fmt/issues/367
+ break;
+ }
+ const std::size_t MIN_GROWTH = 10;
+ buffer.reserve(buffer.capacity() + (size > MIN_GROWTH ? size : MIN_GROWTH));
+ }
+ format_str = end + 1;
+}
+
+namespace internal {
+inline Null<> localtime_r(...)
+{
+ return Null<>();
+}
+inline Null<> localtime_s(...)
+{
+ return Null<>();
+}
+inline Null<> gmtime_r(...)
+{
+ return Null<>();
+}
+inline Null<> gmtime_s(...)
+{
+ return Null<>();
+}
+} // namespace internal
+
+// Thread-safe replacement for std::localtime
+inline std::tm localtime(std::time_t time)
+{
+ struct LocalTime
+ {
+ std::time_t time_;
+ std::tm tm_;
+
+ LocalTime(std::time_t t)
+ : time_(t)
+ {
+ }
+
+ bool run()
+ {
+ using namespace fmt::internal;
+ return handle(localtime_r(&time_, &tm_));
+ }
+
+ bool handle(std::tm *tm)
+ {
+ return tm != FMT_NULL;
+ }
+
+ bool handle(internal::Null<>)
+ {
+ using namespace fmt::internal;
+ return fallback(localtime_s(&tm_, &time_));
+ }
+
+ bool fallback(int res)
+ {
+ return res == 0;
+ }
+
+ bool fallback(internal::Null<>)
+ {
+ using namespace fmt::internal;
+ std::tm *tm = std::localtime(&time_);
+ if (tm)
+ tm_ = *tm;
+ return tm != FMT_NULL;
+ }
+ };
+ LocalTime lt(time);
+ if (lt.run())
+ return lt.tm_;
+ // Too big time values may be unsupported.
+ FMT_THROW(fmt::FormatError("time_t value out of range"));
+ return std::tm();
+}
+
+// Thread-safe replacement for std::gmtime
+inline std::tm gmtime(std::time_t time)
+{
+ struct GMTime
+ {
+ std::time_t time_;
+ std::tm tm_;
+
+ GMTime(std::time_t t)
+ : time_(t)
+ {
+ }
+
+ bool run()
+ {
+ using namespace fmt::internal;
+ return handle(gmtime_r(&time_, &tm_));
+ }
+
+ bool handle(std::tm *tm)
+ {
+ return tm != FMT_NULL;
+ }
+
+ bool handle(internal::Null<>)
+ {
+ using namespace fmt::internal;
+ return fallback(gmtime_s(&tm_, &time_));
+ }
+
+ bool fallback(int res)
+ {
+ return res == 0;
+ }
+
+ bool fallback(internal::Null<>)
+ {
+ std::tm *tm = std::gmtime(&time_);
+ if (tm != FMT_NULL)
+ tm_ = *tm;
+ return tm != FMT_NULL;
+ }
+ };
+ GMTime gt(time);
+ if (gt.run())
+ return gt.tm_;
+ // Too big time values may be unsupported.
+ FMT_THROW(fmt::FormatError("time_t value out of range"));
+ return std::tm();
+}
+} // namespace fmt
+
+#ifdef _MSC_VER
+#pragma warning(pop)
+#endif
+
+#endif // FMT_TIME_H_
diff --git a/lib/spdlog/fmt/fmt.h b/lib/spdlog/fmt/fmt.h
new file mode 100644
index 0000000..e2e0485
--- /dev/null
+++ b/lib/spdlog/fmt/fmt.h
@@ -0,0 +1,33 @@
+//
+// Copyright(c) 2016 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+//
+// Include a bundled header-only copy of fmtlib or an external one.
+// By default spdlog include its own copy.
+//
+
+#if !defined(SPDLOG_FMT_EXTERNAL)
+
+#ifndef FMT_HEADER_ONLY
+#define FMT_HEADER_ONLY
+#endif
+#ifndef FMT_USE_WINDOWS_H
+#define FMT_USE_WINDOWS_H 0
+#endif
+#include "bundled/format.h"
+#if defined(SPDLOG_FMT_PRINTF)
+#include "bundled/printf.h"
+#endif
+
+#else // external fmtlib
+
+#include <fmt/format.h>
+#if defined(SPDLOG_FMT_PRINTF)
+#include <fmt/printf.h>
+#endif
+
+#endif
diff --git a/lib/spdlog/fmt/ostr.h b/lib/spdlog/fmt/ostr.h
new file mode 100644
index 0000000..9902898
--- /dev/null
+++ b/lib/spdlog/fmt/ostr.h
@@ -0,0 +1,18 @@
+//
+// Copyright(c) 2016 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+//
+// include bundled or external copy of fmtlib's ostream support
+//
+#if !defined(SPDLOG_FMT_EXTERNAL)
+#ifndef FMT_HEADER_ONLY
+#define FMT_HEADER_ONLY
+#endif
+#include "bundled/ostream.h"
+#include "fmt.h"
+#else
+#include <fmt/ostream.h>
+#endif
diff --git a/lib/spdlog/formatter.h b/lib/spdlog/formatter.h
new file mode 100644
index 0000000..55388ec
--- /dev/null
+++ b/lib/spdlog/formatter.h
@@ -0,0 +1,46 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+#include "details/log_msg.h"
+
+#include <memory>
+#include <string>
+#include <vector>
+
+namespace spdlog {
+namespace details {
+class flag_formatter;
+}
+
+class formatter
+{
+public:
+ virtual ~formatter() = default;
+ virtual void format(details::log_msg &msg) = 0;
+};
+
+class pattern_formatter SPDLOG_FINAL : public formatter
+{
+public:
+ explicit pattern_formatter(const std::string &pattern, pattern_time_type pattern_time = pattern_time_type::local,
+ std::string eol = spdlog::details::os::default_eol);
+ pattern_formatter(const pattern_formatter &) = delete;
+ pattern_formatter &operator=(const pattern_formatter &) = delete;
+ void format(details::log_msg &msg) override;
+
+private:
+ const std::string _eol;
+ const std::string _pattern;
+ const pattern_time_type _pattern_time;
+ std::vector<std::unique_ptr<details::flag_formatter>> _formatters;
+ std::tm get_time(details::log_msg &msg);
+ void handle_flag(char flag);
+ void compile_pattern(const std::string &pattern);
+};
+} // namespace spdlog
+
+#include "details/pattern_formatter_impl.h"
diff --git a/lib/spdlog/logger.h b/lib/spdlog/logger.h
new file mode 100644
index 0000000..aa4a2c5
--- /dev/null
+++ b/lib/spdlog/logger.h
@@ -0,0 +1,152 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+// Thread safe logger (except for set_pattern(..), set_formatter(..) and set_error_handler())
+// Has name, log level, vector of std::shared sink pointers and formatter
+// Upon each log write the logger:
+// 1. Checks if its log level is enough to log the message
+// 2. Format the message using the formatter function
+// 3. Pass the formatted message to its sinks to performa the actual logging
+
+#include "common.h"
+#include "sinks/base_sink.h"
+
+#include <memory>
+#include <string>
+#include <vector>
+
+namespace spdlog {
+
+class logger
+{
+public:
+ logger(const std::string &name, sink_ptr single_sink);
+ logger(const std::string &name, sinks_init_list sinks);
+
+ template<class It>
+ logger(std::string name, const It &begin, const It &end);
+
+ virtual ~logger();
+
+ logger(const logger &) = delete;
+ logger &operator=(const logger &) = delete;
+
+ template<typename... Args>
+ void log(level::level_enum lvl, const char *fmt, const Args &... args);
+
+ template<typename... Args>
+ void log(level::level_enum lvl, const char *msg);
+
+ template<typename Arg1, typename... Args>
+ void trace(const char *fmt, const Arg1 &, const Args &... args);
+
+ template<typename Arg1, typename... Args>
+ void debug(const char *fmt, const Arg1 &, const Args &... args);
+
+ template<typename Arg1, typename... Args>
+ void info(const char *fmt, const Arg1 &, const Args &... args);
+
+ template<typename Arg1, typename... Args>
+ void warn(const char *fmt, const Arg1 &, const Args &... args);
+
+ template<typename Arg1, typename... Args>
+ void error(const char *fmt, const Arg1 &, const Args &... args);
+
+ template<typename Arg1, typename... Args>
+ void critical(const char *fmt, const Arg1 &, const Args &... args);
+
+#ifdef SPDLOG_WCHAR_TO_UTF8_SUPPORT
+ template<typename... Args>
+ void log(level::level_enum lvl, const wchar_t *msg);
+
+ template<typename... Args>
+ void log(level::level_enum lvl, const wchar_t *fmt, const Args &... args);
+
+ template<typename... Args>
+ void trace(const wchar_t *fmt, const Args &... args);
+
+ template<typename... Args>
+ void debug(const wchar_t *fmt, const Args &... args);
+
+ template<typename... Args>
+ void info(const wchar_t *fmt, const Args &... args);
+
+ template<typename... Args>
+ void warn(const wchar_t *fmt, const Args &... args);
+
+ template<typename... Args>
+ void error(const wchar_t *fmt, const Args &... args);
+
+ template<typename... Args>
+ void critical(const wchar_t *fmt, const Args &... args);
+#endif // SPDLOG_WCHAR_TO_UTF8_SUPPORT
+
+ template<typename T>
+ void log(level::level_enum lvl, const T &);
+
+ template<typename T>
+ void trace(const T &msg);
+
+ template<typename T>
+ void debug(const T &msg);
+
+ template<typename T>
+ void info(const T &msg);
+
+ template<typename T>
+ void warn(const T &msg);
+
+ template<typename T>
+ void error(const T &msg);
+
+ template<typename T>
+ void critical(const T &msg);
+
+ bool should_log(level::level_enum msg_level) const;
+ void set_level(level::level_enum log_level);
+ level::level_enum level() const;
+ const std::string &name() const;
+ void set_pattern(const std::string &pattern, pattern_time_type pattern_time = pattern_time_type::local);
+ void set_formatter(formatter_ptr msg_formatter);
+
+ // automatically call flush() if message level >= log_level
+ void flush_on(level::level_enum log_level);
+
+ virtual void flush();
+
+ const std::vector<sink_ptr> &sinks() const;
+
+ // error handler
+ virtual void set_error_handler(log_err_handler err_handler);
+ virtual log_err_handler error_handler();
+
+protected:
+ virtual void _sink_it(details::log_msg &msg);
+ virtual void _set_pattern(const std::string &pattern, pattern_time_type pattern_time);
+ virtual void _set_formatter(formatter_ptr msg_formatter);
+
+ // default error handler: print the error to stderr with the max rate of 1 message/minute
+ virtual void _default_err_handler(const std::string &msg);
+
+ // return true if the given message level should trigger a flush
+ bool _should_flush_on(const details::log_msg &msg);
+
+ // increment the message count (only if defined(SPDLOG_ENABLE_MESSAGE_COUNTER))
+ void _incr_msg_counter(details::log_msg &msg);
+
+ const std::string _name;
+ std::vector<sink_ptr> _sinks;
+ formatter_ptr _formatter;
+ spdlog::level_t _level;
+ spdlog::level_t _flush_level;
+ log_err_handler _err_handler;
+ std::atomic<time_t> _last_err_time;
+ std::atomic<size_t> _msg_counter;
+};
+} // namespace spdlog
+
+#include "details/logger_impl.h"
diff --git a/lib/spdlog/sinks/android_sink.h b/lib/spdlog/sinks/android_sink.h
new file mode 100644
index 0000000..dd81163
--- /dev/null
+++ b/lib/spdlog/sinks/android_sink.h
@@ -0,0 +1,91 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+#if defined(__ANDROID__)
+
+#include "../details/os.h"
+#include "sink.h"
+
+#include <android/log.h>
+#include <chrono>
+#include <mutex>
+#include <string>
+#include <thread>
+
+#if !defined(SPDLOG_ANDROID_RETRIES)
+#define SPDLOG_ANDROID_RETRIES 2
+#endif
+
+namespace spdlog {
+namespace sinks {
+
+/*
+ * Android sink (logging using __android_log_write)
+ * __android_log_write is thread-safe. No lock is needed.
+ */
+class android_sink : public sink
+{
+public:
+ explicit android_sink(const std::string &tag = "spdlog", bool use_raw_msg = false)
+ : _tag(tag)
+ , _use_raw_msg(use_raw_msg)
+ {
+ }
+
+ void log(const details::log_msg &msg) override
+ {
+ const android_LogPriority priority = convert_to_android(msg.level);
+ const char *msg_output = (_use_raw_msg ? msg.raw.c_str() : msg.formatted.c_str());
+
+ // See system/core/liblog/logger_write.c for explanation of return value
+ int ret = __android_log_write(priority, _tag.c_str(), msg_output);
+ int retry_count = 0;
+ while ((ret == -11 /*EAGAIN*/) && (retry_count < SPDLOG_ANDROID_RETRIES))
+ {
+ details::os::sleep_for_millis(5);
+ ret = __android_log_write(priority, _tag.c_str(), msg_output);
+ retry_count++;
+ }
+
+ if (ret < 0)
+ {
+ throw spdlog_ex("__android_log_write() failed", ret);
+ }
+ }
+
+ void flush() override {}
+
+private:
+ static android_LogPriority convert_to_android(spdlog::level::level_enum level)
+ {
+ switch (level)
+ {
+ case spdlog::level::trace:
+ return ANDROID_LOG_VERBOSE;
+ case spdlog::level::debug:
+ return ANDROID_LOG_DEBUG;
+ case spdlog::level::info:
+ return ANDROID_LOG_INFO;
+ case spdlog::level::warn:
+ return ANDROID_LOG_WARN;
+ case spdlog::level::err:
+ return ANDROID_LOG_ERROR;
+ case spdlog::level::critical:
+ return ANDROID_LOG_FATAL;
+ default:
+ return ANDROID_LOG_DEFAULT;
+ }
+ }
+
+ std::string _tag;
+ bool _use_raw_msg;
+};
+
+} // namespace sinks
+} // namespace spdlog
+
+#endif
diff --git a/lib/spdlog/sinks/ansicolor_sink.h b/lib/spdlog/sinks/ansicolor_sink.h
new file mode 100644
index 0000000..e74389c
--- /dev/null
+++ b/lib/spdlog/sinks/ansicolor_sink.h
@@ -0,0 +1,150 @@
+//
+// Copyright(c) 2017 spdlog authors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+#include "../common.h"
+#include "../details/os.h"
+#include "base_sink.h"
+
+#include <string>
+#include <unordered_map>
+
+namespace spdlog {
+namespace sinks {
+
+/**
+ * This sink prefixes the output with an ANSI escape sequence color code depending on the severity
+ * of the message.
+ * If no color terminal detected, omit the escape codes.
+ */
+template<class Mutex>
+class ansicolor_sink : public base_sink<Mutex>
+{
+public:
+ explicit ansicolor_sink(FILE *file)
+ : target_file_(file)
+ {
+ should_do_colors_ = details::os::in_terminal(file) && details::os::is_color_terminal();
+ colors_[level::trace] = white;
+ colors_[level::debug] = cyan;
+ colors_[level::info] = green;
+ colors_[level::warn] = yellow + bold;
+ colors_[level::err] = red + bold;
+ colors_[level::critical] = bold + on_red;
+ colors_[level::off] = reset;
+ }
+
+ ~ansicolor_sink() override
+ {
+ _flush();
+ }
+
+ void set_color(level::level_enum color_level, const std::string &color)
+ {
+ std::lock_guard<Mutex> lock(base_sink<Mutex>::_mutex);
+ colors_[color_level] = color;
+ }
+
+ /// Formatting codes
+ const std::string reset = "\033[m";
+ const std::string bold = "\033[1m";
+ const std::string dark = "\033[2m";
+ const std::string underline = "\033[4m";
+ const std::string blink = "\033[5m";
+ const std::string reverse = "\033[7m";
+ const std::string concealed = "\033[8m";
+ const std::string clear_line = "\033[K";
+
+ // Foreground colors
+ const std::string black = "\033[30m";
+ const std::string red = "\033[31m";
+ const std::string green = "\033[32m";
+ const std::string yellow = "\033[33m";
+ const std::string blue = "\033[34m";
+ const std::string magenta = "\033[35m";
+ const std::string cyan = "\033[36m";
+ const std::string white = "\033[37m";
+
+ /// Background colors
+ const std::string on_black = "\033[40m";
+ const std::string on_red = "\033[41m";
+ const std::string on_green = "\033[42m";
+ const std::string on_yellow = "\033[43m";
+ const std::string on_blue = "\033[44m";
+ const std::string on_magenta = "\033[45m";
+ const std::string on_cyan = "\033[46m";
+ const std::string on_white = "\033[47m";
+
+protected:
+ void _sink_it(const details::log_msg &msg) override
+ {
+ // Wrap the originally formatted message in color codes.
+ // If color is not supported in the terminal, log as is instead.
+ if (should_do_colors_ && msg.color_range_end > msg.color_range_start)
+ {
+ // before color range
+ _print_range(msg, 0, msg.color_range_start);
+ // in color range
+ _print_ccode(colors_[msg.level]);
+ _print_range(msg, msg.color_range_start, msg.color_range_end);
+ _print_ccode(reset);
+ // after color range
+ _print_range(msg, msg.color_range_end, msg.formatted.size());
+ }
+ else
+ {
+ _print_range(msg, 0, msg.formatted.size());
+ }
+ _flush();
+ }
+
+ void _flush() override
+ {
+ fflush(target_file_);
+ }
+
+private:
+ void _print_ccode(const std::string &color_code)
+ {
+ fwrite(color_code.data(), sizeof(char), color_code.size(), target_file_);
+ }
+ void _print_range(const details::log_msg &msg, size_t start, size_t end)
+ {
+ fwrite(msg.formatted.data() + start, sizeof(char), end - start, target_file_);
+ }
+ FILE *target_file_;
+ bool should_do_colors_;
+ std::unordered_map<level::level_enum, std::string, level::level_hasher> colors_;
+};
+
+template<class Mutex>
+class ansicolor_stdout_sink : public ansicolor_sink<Mutex>
+{
+public:
+ ansicolor_stdout_sink()
+ : ansicolor_sink<Mutex>(stdout)
+ {
+ }
+};
+
+using ansicolor_stdout_sink_mt = ansicolor_stdout_sink<std::mutex>;
+using ansicolor_stdout_sink_st = ansicolor_stdout_sink<details::null_mutex>;
+
+template<class Mutex>
+class ansicolor_stderr_sink : public ansicolor_sink<Mutex>
+{
+public:
+ ansicolor_stderr_sink()
+ : ansicolor_sink<Mutex>(stderr)
+ {
+ }
+};
+
+using ansicolor_stderr_sink_mt = ansicolor_stderr_sink<std::mutex>;
+using ansicolor_stderr_sink_st = ansicolor_stderr_sink<details::null_mutex>;
+
+} // namespace sinks
+} // namespace spdlog
diff --git a/lib/spdlog/sinks/base_sink.h b/lib/spdlog/sinks/base_sink.h
new file mode 100644
index 0000000..96cd001
--- /dev/null
+++ b/lib/spdlog/sinks/base_sink.h
@@ -0,0 +1,49 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+//
+// base sink templated over a mutex (either dummy or real)
+// concrete implementation should only override the _sink_it method.
+// all locking is taken care of here so no locking needed by the implementers..
+//
+
+#include "../common.h"
+#include "../details/log_msg.h"
+#include "../formatter.h"
+#include "sink.h"
+
+#include <mutex>
+
+namespace spdlog {
+namespace sinks {
+template<class Mutex>
+class base_sink : public sink
+{
+public:
+ base_sink() = default;
+
+ base_sink(const base_sink &) = delete;
+ base_sink &operator=(const base_sink &) = delete;
+
+ void log(const details::log_msg &msg) SPDLOG_FINAL override
+ {
+ std::lock_guard<Mutex> lock(_mutex);
+ _sink_it(msg);
+ }
+
+ void flush() SPDLOG_FINAL override
+ {
+ std::lock_guard<Mutex> lock(_mutex);
+ _flush();
+ }
+
+protected:
+ virtual void _sink_it(const details::log_msg &msg) = 0;
+ virtual void _flush() = 0;
+ Mutex _mutex;
+};
+} // namespace sinks
+} // namespace spdlog
diff --git a/lib/spdlog/sinks/dist_sink.h b/lib/spdlog/sinks/dist_sink.h
new file mode 100644
index 0000000..b4a7b6a
--- /dev/null
+++ b/lib/spdlog/sinks/dist_sink.h
@@ -0,0 +1,77 @@
+//
+// Copyright (c) 2015 David Schury, Gabi Melman
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+#include "../details/log_msg.h"
+#include "../details/null_mutex.h"
+#include "base_sink.h"
+#include "sink.h"
+
+#include <algorithm>
+#include <memory>
+#include <mutex>
+#include <vector>
+
+// Distribution sink (mux). Stores a vector of sinks which get called when log is called
+
+namespace spdlog {
+namespace sinks {
+template<class Mutex>
+class dist_sink : public base_sink<Mutex>
+{
+public:
+ explicit dist_sink()
+ : _sinks()
+ {
+ }
+ dist_sink(const dist_sink &) = delete;
+ dist_sink &operator=(const dist_sink &) = delete;
+
+protected:
+ std::vector<std::shared_ptr<sink>> _sinks;
+
+ void _sink_it(const details::log_msg &msg) override
+ {
+ for (auto &sink : _sinks)
+ {
+ if (sink->should_log(msg.level))
+ {
+ sink->log(msg);
+ }
+ }
+ }
+
+ void _flush() override
+ {
+ for (auto &sink : _sinks)
+ sink->flush();
+ }
+
+public:
+ void add_sink(std::shared_ptr<sink> sink)
+ {
+ std::lock_guard<Mutex> lock(base_sink<Mutex>::_mutex);
+ _sinks.push_back(sink);
+ }
+
+ void remove_sink(std::shared_ptr<sink> sink)
+ {
+ std::lock_guard<Mutex> lock(base_sink<Mutex>::_mutex);
+ _sinks.erase(std::remove(_sinks.begin(), _sinks.end(), sink), _sinks.end());
+ }
+
+ void remove_all_sinks()
+ {
+ std::lock_guard<Mutex> lock(base_sink<Mutex>::_mutex);
+ _sinks.clear();
+ }
+};
+
+using dist_sink_mt = dist_sink<std::mutex>;
+using dist_sink_st = dist_sink<details::null_mutex>;
+
+} // namespace sinks
+} // namespace spdlog
diff --git a/lib/spdlog/sinks/file_sinks.h b/lib/spdlog/sinks/file_sinks.h
new file mode 100644
index 0000000..109c493
--- /dev/null
+++ b/lib/spdlog/sinks/file_sinks.h
@@ -0,0 +1,255 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+#include "../details/file_helper.h"
+#include "../details/null_mutex.h"
+#include "../fmt/fmt.h"
+#include "base_sink.h"
+
+#include <algorithm>
+#include <cerrno>
+#include <chrono>
+#include <cstdio>
+#include <ctime>
+#include <mutex>
+#include <string>
+
+namespace spdlog {
+namespace sinks {
+/*
+ * Trivial file sink with single file as target
+ */
+template<class Mutex>
+class simple_file_sink SPDLOG_FINAL : public base_sink<Mutex>
+{
+public:
+ explicit simple_file_sink(const filename_t &filename, bool truncate = false)
+ : _force_flush(false)
+ {
+ _file_helper.open(filename, truncate);
+ }
+
+ void set_force_flush(bool force_flush)
+ {
+ _force_flush = force_flush;
+ }
+
+protected:
+ void _sink_it(const details::log_msg &msg) override
+ {
+ _file_helper.write(msg);
+ if (_force_flush)
+ {
+ _file_helper.flush();
+ }
+ }
+
+ void _flush() override
+ {
+ _file_helper.flush();
+ }
+
+private:
+ details::file_helper _file_helper;
+ bool _force_flush;
+};
+
+using simple_file_sink_mt = simple_file_sink<std::mutex>;
+using simple_file_sink_st = simple_file_sink<details::null_mutex>;
+
+/*
+ * Rotating file sink based on size
+ */
+template<class Mutex>
+class rotating_file_sink SPDLOG_FINAL : public base_sink<Mutex>
+{
+public:
+ rotating_file_sink(filename_t base_filename, std::size_t max_size, std::size_t max_files)
+ : _base_filename(std::move(base_filename))
+ , _max_size(max_size)
+ , _max_files(max_files)
+ {
+ _file_helper.open(calc_filename(_base_filename, 0));
+ _current_size = _file_helper.size(); // expensive. called only once
+ }
+
+ // calc filename according to index and file extension if exists.
+ // e.g. calc_filename("logs/mylog.txt, 3) => "logs/mylog.3.txt".
+ static filename_t calc_filename(const filename_t &filename, std::size_t index)
+ {
+ typename std::conditional<std::is_same<filename_t::value_type, char>::value, fmt::MemoryWriter, fmt::WMemoryWriter>::type w;
+ if (index != 0u)
+ {
+ filename_t basename, ext;
+ std::tie(basename, ext) = details::file_helper::split_by_extenstion(filename);
+ w.write(SPDLOG_FILENAME_T("{}.{}{}"), basename, index, ext);
+ }
+ else
+ {
+ w.write(SPDLOG_FILENAME_T("{}"), filename);
+ }
+ return w.str();
+ }
+
+protected:
+ void _sink_it(const details::log_msg &msg) override
+ {
+ _current_size += msg.formatted.size();
+ if (_current_size > _max_size)
+ {
+ _rotate();
+ _current_size = msg.formatted.size();
+ }
+ _file_helper.write(msg);
+ }
+
+ void _flush() override
+ {
+ _file_helper.flush();
+ }
+
+private:
+ // Rotate files:
+ // log.txt -> log.1.txt
+ // log.1.txt -> log.2.txt
+ // log.2.txt -> log.3.txt
+ // log.3.txt -> delete
+ void _rotate()
+ {
+ using details::os::filename_to_str;
+ _file_helper.close();
+ for (auto i = _max_files; i > 0; --i)
+ {
+ filename_t src = calc_filename(_base_filename, i - 1);
+ filename_t target = calc_filename(_base_filename, i);
+
+ if (details::file_helper::file_exists(target))
+ {
+ if (details::os::remove(target) != 0)
+ {
+ throw spdlog_ex("rotating_file_sink: failed removing " + filename_to_str(target), errno);
+ }
+ }
+ if (details::file_helper::file_exists(src) && details::os::rename(src, target) != 0)
+ {
+ throw spdlog_ex("rotating_file_sink: failed renaming " + filename_to_str(src) + " to " + filename_to_str(target), errno);
+ }
+ }
+ _file_helper.reopen(true);
+ }
+
+ filename_t _base_filename;
+ std::size_t _max_size;
+ std::size_t _max_files;
+ std::size_t _current_size;
+ details::file_helper _file_helper;
+};
+
+using rotating_file_sink_mt = rotating_file_sink<std::mutex>;
+using rotating_file_sink_st = rotating_file_sink<details::null_mutex>;
+
+/*
+ * Default generator of daily log file names.
+ */
+struct default_daily_file_name_calculator
+{
+ // Create filename for the form filename.YYYY-MM-DD_hh-mm.ext
+ static filename_t calc_filename(const filename_t &filename)
+ {
+ std::tm tm = spdlog::details::os::localtime();
+ filename_t basename, ext;
+ std::tie(basename, ext) = details::file_helper::split_by_extenstion(filename);
+ std::conditional<std::is_same<filename_t::value_type, char>::value, fmt::MemoryWriter, fmt::WMemoryWriter>::type w;
+ w.write(SPDLOG_FILENAME_T("{}_{:04d}-{:02d}-{:02d}_{:02d}-{:02d}{}"), basename, tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday,
+ tm.tm_hour, tm.tm_min, ext);
+ return w.str();
+ }
+};
+
+/*
+ * Generator of daily log file names in format basename.YYYY-MM-DD.ext
+ */
+struct dateonly_daily_file_name_calculator
+{
+ // Create filename for the form basename.YYYY-MM-DD
+ static filename_t calc_filename(const filename_t &filename)
+ {
+ std::tm tm = spdlog::details::os::localtime();
+ filename_t basename, ext;
+ std::tie(basename, ext) = details::file_helper::split_by_extenstion(filename);
+ std::conditional<std::is_same<filename_t::value_type, char>::value, fmt::MemoryWriter, fmt::WMemoryWriter>::type w;
+ w.write(SPDLOG_FILENAME_T("{}_{:04d}-{:02d}-{:02d}{}"), basename, tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday, ext);
+ return w.str();
+ }
+};
+
+/*
+ * Rotating file sink based on date. rotates at midnight
+ */
+template<class Mutex, class FileNameCalc = default_daily_file_name_calculator>
+class daily_file_sink SPDLOG_FINAL : public base_sink<Mutex>
+{
+public:
+ // create daily file sink which rotates on given time
+ daily_file_sink(filename_t base_filename, int rotation_hour, int rotation_minute)
+ : _base_filename(std::move(base_filename))
+ , _rotation_h(rotation_hour)
+ , _rotation_m(rotation_minute)
+ {
+ if (rotation_hour < 0 || rotation_hour > 23 || rotation_minute < 0 || rotation_minute > 59)
+ {
+ throw spdlog_ex("daily_file_sink: Invalid rotation time in ctor");
+ }
+ _rotation_tp = _next_rotation_tp();
+ _file_helper.open(FileNameCalc::calc_filename(_base_filename));
+ }
+
+protected:
+ void _sink_it(const details::log_msg &msg) override
+ {
+ if (std::chrono::system_clock::now() >= _rotation_tp)
+ {
+ _file_helper.open(FileNameCalc::calc_filename(_base_filename));
+ _rotation_tp = _next_rotation_tp();
+ }
+ _file_helper.write(msg);
+ }
+
+ void _flush() override
+ {
+ _file_helper.flush();
+ }
+
+private:
+ std::chrono::system_clock::time_point _next_rotation_tp()
+ {
+ auto now = std::chrono::system_clock::now();
+ time_t tnow = std::chrono::system_clock::to_time_t(now);
+ tm date = spdlog::details::os::localtime(tnow);
+ date.tm_hour = _rotation_h;
+ date.tm_min = _rotation_m;
+ date.tm_sec = 0;
+ auto rotation_time = std::chrono::system_clock::from_time_t(std::mktime(&date));
+ if (rotation_time > now)
+ {
+ return rotation_time;
+ }
+ return {rotation_time + std::chrono::hours(24)};
+ }
+
+ filename_t _base_filename;
+ int _rotation_h;
+ int _rotation_m;
+ std::chrono::system_clock::time_point _rotation_tp;
+ details::file_helper _file_helper;
+};
+
+using daily_file_sink_mt = daily_file_sink<std::mutex>;
+using daily_file_sink_st = daily_file_sink<details::null_mutex>;
+
+} // namespace sinks
+} // namespace spdlog
diff --git a/lib/spdlog/sinks/msvc_sink.h b/lib/spdlog/sinks/msvc_sink.h
new file mode 100644
index 0000000..09a5d67
--- /dev/null
+++ b/lib/spdlog/sinks/msvc_sink.h
@@ -0,0 +1,44 @@
+//
+// Copyright(c) 2016 Alexander Dalshov.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+#if defined(_WIN32)
+
+#include "../details/null_mutex.h"
+#include "base_sink.h"
+
+#include <winbase.h>
+
+#include <mutex>
+#include <string>
+
+namespace spdlog {
+namespace sinks {
+/*
+ * MSVC sink (logging using OutputDebugStringA)
+ */
+template<class Mutex>
+class msvc_sink : public base_sink<Mutex>
+{
+public:
+ explicit msvc_sink() {}
+
+protected:
+ void _sink_it(const details::log_msg &msg) override
+ {
+ OutputDebugStringA(msg.formatted.c_str());
+ }
+
+ void _flush() override {}
+};
+
+using msvc_sink_mt = msvc_sink<std::mutex>;
+using msvc_sink_st = msvc_sink<details::null_mutex>;
+
+} // namespace sinks
+} // namespace spdlog
+
+#endif
diff --git a/lib/spdlog/sinks/null_sink.h b/lib/spdlog/sinks/null_sink.h
new file mode 100644
index 0000000..c254bc5
--- /dev/null
+++ b/lib/spdlog/sinks/null_sink.h
@@ -0,0 +1,29 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+#include "../details/null_mutex.h"
+#include "base_sink.h"
+
+#include <mutex>
+
+namespace spdlog {
+namespace sinks {
+
+template<class Mutex>
+class null_sink : public base_sink<Mutex>
+{
+protected:
+ void _sink_it(const details::log_msg &) override {}
+
+ void _flush() override {}
+};
+
+using null_sink_mt = null_sink<details::null_mutex>;
+using null_sink_st = null_sink<details::null_mutex>;
+
+} // namespace sinks
+} // namespace spdlog
diff --git a/lib/spdlog/sinks/ostream_sink.h b/lib/spdlog/sinks/ostream_sink.h
new file mode 100644
index 0000000..9728138
--- /dev/null
+++ b/lib/spdlog/sinks/ostream_sink.h
@@ -0,0 +1,49 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+#include "../details/null_mutex.h"
+#include "base_sink.h"
+
+#include <mutex>
+#include <ostream>
+
+namespace spdlog {
+namespace sinks {
+template<class Mutex>
+class ostream_sink : public base_sink<Mutex>
+{
+public:
+ explicit ostream_sink(std::ostream &os, bool force_flush = false)
+ : _ostream(os)
+ , _force_flush(force_flush)
+ {
+ }
+ ostream_sink(const ostream_sink &) = delete;
+ ostream_sink &operator=(const ostream_sink &) = delete;
+
+protected:
+ void _sink_it(const details::log_msg &msg) override
+ {
+ _ostream.write(msg.formatted.data(), msg.formatted.size());
+ if (_force_flush)
+ _ostream.flush();
+ }
+
+ void _flush() override
+ {
+ _ostream.flush();
+ }
+
+ std::ostream &_ostream;
+ bool _force_flush;
+};
+
+using ostream_sink_mt = ostream_sink<std::mutex>;
+using ostream_sink_st = ostream_sink<details::null_mutex>;
+
+} // namespace sinks
+} // namespace spdlog
diff --git a/lib/spdlog/sinks/sink.h b/lib/spdlog/sinks/sink.h
new file mode 100644
index 0000000..b4e3806
--- /dev/null
+++ b/lib/spdlog/sinks/sink.h
@@ -0,0 +1,44 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+#include "../details/log_msg.h"
+
+namespace spdlog {
+namespace sinks {
+class sink
+{
+public:
+ virtual ~sink() = default;
+
+ virtual void log(const details::log_msg &msg) = 0;
+ virtual void flush() = 0;
+
+ bool should_log(level::level_enum msg_level) const;
+ void set_level(level::level_enum log_level);
+ level::level_enum level() const;
+
+private:
+ level_t _level{level::trace};
+};
+
+inline bool sink::should_log(level::level_enum msg_level) const
+{
+ return msg_level >= _level.load(std::memory_order_relaxed);
+}
+
+inline void sink::set_level(level::level_enum log_level)
+{
+ _level.store(log_level);
+}
+
+inline level::level_enum sink::level() const
+{
+ return static_cast<spdlog::level::level_enum>(_level.load(std::memory_order_relaxed));
+}
+
+} // namespace sinks
+} // namespace spdlog
diff --git a/lib/spdlog/sinks/stdout_sinks.h b/lib/spdlog/sinks/stdout_sinks.h
new file mode 100644
index 0000000..b15d080
--- /dev/null
+++ b/lib/spdlog/sinks/stdout_sinks.h
@@ -0,0 +1,79 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+#include "../details/null_mutex.h"
+#include "base_sink.h"
+
+#include <cstdio>
+#include <memory>
+#include <mutex>
+
+namespace spdlog {
+namespace sinks {
+
+template<class Mutex>
+class stdout_sink SPDLOG_FINAL : public base_sink<Mutex>
+{
+ using MyType = stdout_sink<Mutex>;
+
+public:
+ explicit stdout_sink() = default;
+
+ static std::shared_ptr<MyType> instance()
+ {
+ static std::shared_ptr<MyType> instance = std::make_shared<MyType>();
+ return instance;
+ }
+
+protected:
+ void _sink_it(const details::log_msg &msg) override
+ {
+ fwrite(msg.formatted.data(), sizeof(char), msg.formatted.size(), stdout);
+ _flush();
+ }
+
+ void _flush() override
+ {
+ fflush(stdout);
+ }
+};
+
+using stdout_sink_mt = stdout_sink<std::mutex>;
+using stdout_sink_st = stdout_sink<details::null_mutex>;
+
+template<class Mutex>
+class stderr_sink SPDLOG_FINAL : public base_sink<Mutex>
+{
+ using MyType = stderr_sink<Mutex>;
+
+public:
+ explicit stderr_sink() = default;
+
+ static std::shared_ptr<MyType> instance()
+ {
+ static std::shared_ptr<MyType> instance = std::make_shared<MyType>();
+ return instance;
+ }
+
+protected:
+ void _sink_it(const details::log_msg &msg) override
+ {
+ fwrite(msg.formatted.data(), sizeof(char), msg.formatted.size(), stderr);
+ _flush();
+ }
+
+ void _flush() override
+ {
+ fflush(stderr);
+ }
+};
+
+using stderr_sink_mt = stderr_sink<std::mutex>;
+using stderr_sink_st = stderr_sink<details::null_mutex>;
+
+} // namespace sinks
+} // namespace spdlog
diff --git a/lib/spdlog/sinks/syslog_sink.h b/lib/spdlog/sinks/syslog_sink.h
new file mode 100644
index 0000000..17bbb1d
--- /dev/null
+++ b/lib/spdlog/sinks/syslog_sink.h
@@ -0,0 +1,76 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+#include "../common.h"
+
+#ifdef SPDLOG_ENABLE_SYSLOG
+
+#include "../details/log_msg.h"
+#include "sink.h"
+
+#include <array>
+#include <string>
+#include <syslog.h>
+
+namespace spdlog {
+namespace sinks {
+/**
+ * Sink that write to syslog using the `syscall()` library call.
+ *
+ * Locking is not needed, as `syslog()` itself is thread-safe.
+ */
+class syslog_sink : public sink
+{
+public:
+ //
+ syslog_sink(const std::string &ident = "", int syslog_option = 0, int syslog_facility = LOG_USER)
+ : _ident(ident)
+ {
+ _priorities[static_cast<size_t>(level::trace)] = LOG_DEBUG;
+ _priorities[static_cast<size_t>(level::debug)] = LOG_DEBUG;
+ _priorities[static_cast<size_t>(level::info)] = LOG_INFO;
+ _priorities[static_cast<size_t>(level::warn)] = LOG_WARNING;
+ _priorities[static_cast<size_t>(level::err)] = LOG_ERR;
+ _priorities[static_cast<size_t>(level::critical)] = LOG_CRIT;
+ _priorities[static_cast<size_t>(level::off)] = LOG_INFO;
+
+ // set ident to be program name if empty
+ ::openlog(_ident.empty() ? nullptr : _ident.c_str(), syslog_option, syslog_facility);
+ }
+
+ ~syslog_sink() override
+ {
+ ::closelog();
+ }
+
+ syslog_sink(const syslog_sink &) = delete;
+ syslog_sink &operator=(const syslog_sink &) = delete;
+
+ void log(const details::log_msg &msg) override
+ {
+ ::syslog(syslog_prio_from_level(msg), "%s", msg.raw.str().c_str());
+ }
+
+ void flush() override {}
+
+private:
+ std::array<int, 7> _priorities;
+ // must store the ident because the man says openlog might use the pointer as is and not a string copy
+ const std::string _ident;
+
+ //
+ // Simply maps spdlog's log level to syslog priority level.
+ //
+ int syslog_prio_from_level(const details::log_msg &msg) const
+ {
+ return _priorities[static_cast<size_t>(msg.level)];
+ }
+};
+} // namespace sinks
+} // namespace spdlog
+
+#endif
diff --git a/lib/spdlog/sinks/wincolor_sink.h b/lib/spdlog/sinks/wincolor_sink.h
new file mode 100644
index 0000000..402fa12
--- /dev/null
+++ b/lib/spdlog/sinks/wincolor_sink.h
@@ -0,0 +1,144 @@
+//
+// Copyright(c) 2016 spdlog
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+#include "../common.h"
+#include "../details/null_mutex.h"
+#include "base_sink.h"
+
+#include <mutex>
+#include <string>
+#include <unordered_map>
+#include <wincon.h>
+
+namespace spdlog {
+namespace sinks {
+/*
+ * Windows color console sink. Uses WriteConsoleA to write to the console with colors
+ */
+template<class Mutex>
+class wincolor_sink : public base_sink<Mutex>
+{
+public:
+ const WORD BOLD = FOREGROUND_INTENSITY;
+ const WORD RED = FOREGROUND_RED;
+ const WORD GREEN = FOREGROUND_GREEN;
+ const WORD CYAN = FOREGROUND_GREEN | FOREGROUND_BLUE;
+ const WORD WHITE = FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE;
+ const WORD YELLOW = FOREGROUND_RED | FOREGROUND_GREEN;
+
+ wincolor_sink(HANDLE std_handle)
+ : out_handle_(std_handle)
+ {
+ colors_[level::trace] = WHITE;
+ colors_[level::debug] = CYAN;
+ colors_[level::info] = GREEN;
+ colors_[level::warn] = YELLOW | BOLD;
+ colors_[level::err] = RED | BOLD; // red bold
+ colors_[level::critical] = BACKGROUND_RED | WHITE | BOLD; // white bold on red background
+ colors_[level::off] = 0;
+ }
+
+ ~wincolor_sink() override
+ {
+ this->flush();
+ }
+
+ wincolor_sink(const wincolor_sink &other) = delete;
+ wincolor_sink &operator=(const wincolor_sink &other) = delete;
+
+ // change the color for the given level
+ void set_color(level::level_enum level, WORD color)
+ {
+ std::lock_guard<Mutex> lock(base_sink<Mutex>::_mutex);
+ colors_[level] = color;
+ }
+
+protected:
+ void _sink_it(const details::log_msg &msg) override
+ {
+ if (msg.color_range_end > msg.color_range_start)
+ {
+ // before color range
+ _print_range(msg, 0, msg.color_range_start);
+
+ // in color range
+ auto orig_attribs = set_console_attribs(colors_[msg.level]);
+ _print_range(msg, msg.color_range_start, msg.color_range_end);
+ ::SetConsoleTextAttribute(out_handle_, orig_attribs); // reset to orig colors
+ // after color range
+ _print_range(msg, msg.color_range_end, msg.formatted.size());
+ }
+ else // print without colors if color range is invalid
+ {
+ _print_range(msg, 0, msg.formatted.size());
+ }
+ }
+
+ void _flush() override
+ {
+ // windows console always flushed?
+ }
+
+private:
+ HANDLE out_handle_;
+ std::unordered_map<level::level_enum, WORD, level::level_hasher> colors_;
+
+ // set color and return the orig console attributes (for resetting later)
+ WORD set_console_attribs(WORD attribs)
+ {
+ CONSOLE_SCREEN_BUFFER_INFO orig_buffer_info;
+ GetConsoleScreenBufferInfo(out_handle_, &orig_buffer_info);
+ WORD back_color = orig_buffer_info.wAttributes;
+ // retrieve the current background color
+ back_color &= static_cast<WORD>(~(FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE | FOREGROUND_INTENSITY));
+ // keep the background color unchanged
+ SetConsoleTextAttribute(out_handle_, attribs | back_color);
+ return orig_buffer_info.wAttributes; // return orig attribs
+ }
+
+ // print a range of formatted message to console
+ void _print_range(const details::log_msg &msg, size_t start, size_t end)
+ {
+ DWORD size = static_cast<DWORD>(end - start);
+ WriteConsoleA(out_handle_, msg.formatted.data() + start, size, nullptr, nullptr);
+ }
+};
+
+//
+// windows color console to stdout
+//
+template<class Mutex>
+class wincolor_stdout_sink : public wincolor_sink<Mutex>
+{
+public:
+ wincolor_stdout_sink()
+ : wincolor_sink<Mutex>(GetStdHandle(STD_OUTPUT_HANDLE))
+ {
+ }
+};
+
+using wincolor_stdout_sink_mt = wincolor_stdout_sink<std::mutex>;
+using wincolor_stdout_sink_st = wincolor_stdout_sink<details::null_mutex>;
+
+//
+// windows color console to stderr
+//
+template<class Mutex>
+class wincolor_stderr_sink : public wincolor_sink<Mutex>
+{
+public:
+ wincolor_stderr_sink()
+ : wincolor_sink<Mutex>(GetStdHandle(STD_ERROR_HANDLE))
+ {
+ }
+};
+
+using wincolor_stderr_sink_mt = wincolor_stderr_sink<std::mutex>;
+using wincolor_stderr_sink_st = wincolor_stderr_sink<details::null_mutex>;
+
+} // namespace sinks
+} // namespace spdlog
diff --git a/lib/spdlog/sinks/windebug_sink.h b/lib/spdlog/sinks/windebug_sink.h
new file mode 100644
index 0000000..2c7f1bc
--- /dev/null
+++ b/lib/spdlog/sinks/windebug_sink.h
@@ -0,0 +1,27 @@
+//
+// Copyright(c) 2017 Alexander Dalshov.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+#if defined(_WIN32)
+
+#include "msvc_sink.h"
+
+namespace spdlog {
+namespace sinks {
+
+/*
+ * Windows debug sink (logging using OutputDebugStringA, synonym for msvc_sink)
+ */
+template<class Mutex>
+using windebug_sink = msvc_sink<Mutex>;
+
+using windebug_sink_mt = msvc_sink_mt;
+using windebug_sink_st = msvc_sink_st;
+
+} // namespace sinks
+} // namespace spdlog
+
+#endif
diff --git a/lib/spdlog/spdlog.h b/lib/spdlog/spdlog.h
new file mode 100644
index 0000000..21f5951
--- /dev/null
+++ b/lib/spdlog/spdlog.h
@@ -0,0 +1,204 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+// spdlog main header file.
+// see example.cpp for usage example
+
+#pragma once
+
+#include "common.h"
+#include "logger.h"
+
+#include <chrono>
+#include <functional>
+#include <memory>
+#include <string>
+
+namespace spdlog {
+
+//
+// Return an existing logger or nullptr if a logger with such name doesn't exist.
+// example: spdlog::get("my_logger")->info("hello {}", "world");
+//
+std::shared_ptr<logger> get(const std::string &name);
+
+//
+// Set global formatting
+// example: spdlog::set_pattern("%Y-%m-%d %H:%M:%S.%e %l : %v");
+//
+void set_pattern(const std::string &format_string);
+void set_formatter(formatter_ptr f);
+
+//
+// Set global logging level
+//
+void set_level(level::level_enum log_level);
+
+//
+// Set global flush level
+//
+void flush_on(level::level_enum log_level);
+
+//
+// Set global error handler
+//
+void set_error_handler(log_err_handler handler);
+
+//
+// Turn on async mode (off by default) and set the queue size for each async_logger.
+// effective only for loggers created after this call.
+// queue_size: size of queue (must be power of 2):
+// Each logger will pre-allocate a dedicated queue with queue_size entries upon construction.
+//
+// async_overflow_policy (optional, block_retry by default):
+// async_overflow_policy::block_retry - if queue is full, block until queue has room for the new log entry.
+// async_overflow_policy::discard_log_msg - never block and discard any new messages when queue overflows.
+//
+// worker_warmup_cb (optional):
+// callback function that will be called in worker thread upon start (can be used to init stuff like thread affinity)
+//
+// worker_teardown_cb (optional):
+// callback function that will be called in worker thread upon exit
+//
+void set_async_mode(size_t queue_size, const async_overflow_policy overflow_policy = async_overflow_policy::block_retry,
+ const std::function<void()> &worker_warmup_cb = nullptr,
+ const std::chrono::milliseconds &flush_interval_ms = std::chrono::milliseconds::zero(),
+ const std::function<void()> &worker_teardown_cb = nullptr);
+
+// Turn off async mode
+void set_sync_mode();
+
+//
+// Create and register multi/single threaded basic file logger.
+// Basic logger simply writes to given file without any limitations or rotations.
+//
+std::shared_ptr<logger> basic_logger_mt(const std::string &logger_name, const filename_t &filename, bool truncate = false);
+std::shared_ptr<logger> basic_logger_st(const std::string &logger_name, const filename_t &filename, bool truncate = false);
+
+//
+// Create and register multi/single threaded rotating file logger
+//
+std::shared_ptr<logger> rotating_logger_mt(
+ const std::string &logger_name, const filename_t &filename, size_t max_file_size, size_t max_files);
+
+std::shared_ptr<logger> rotating_logger_st(
+ const std::string &logger_name, const filename_t &filename, size_t max_file_size, size_t max_files);
+
+//
+// Create file logger which creates new file on the given time (default in midnight):
+//
+std::shared_ptr<logger> daily_logger_mt(const std::string &logger_name, const filename_t &filename, int hour = 0, int minute = 0);
+std::shared_ptr<logger> daily_logger_st(const std::string &logger_name, const filename_t &filename, int hour = 0, int minute = 0);
+
+//
+// Create and register stdout/stderr loggers
+//
+std::shared_ptr<logger> stdout_logger_mt(const std::string &logger_name);
+std::shared_ptr<logger> stdout_logger_st(const std::string &logger_name);
+std::shared_ptr<logger> stderr_logger_mt(const std::string &logger_name);
+std::shared_ptr<logger> stderr_logger_st(const std::string &logger_name);
+//
+// Create and register colored stdout/stderr loggers
+//
+std::shared_ptr<logger> stdout_color_mt(const std::string &logger_name);
+std::shared_ptr<logger> stdout_color_st(const std::string &logger_name);
+std::shared_ptr<logger> stderr_color_mt(const std::string &logger_name);
+std::shared_ptr<logger> stderr_color_st(const std::string &logger_name);
+
+//
+// Create and register a syslog logger
+//
+#ifdef SPDLOG_ENABLE_SYSLOG
+std::shared_ptr<logger> syslog_logger(
+ const std::string &logger_name, const std::string &ident = "", int syslog_option = 0, int syslog_facilty = (1 << 3));
+#endif
+
+#if defined(__ANDROID__)
+std::shared_ptr<logger> android_logger(const std::string &logger_name, const std::string &tag = "spdlog");
+#endif
+
+// Create and register a logger with a single sink
+std::shared_ptr<logger> create(const std::string &logger_name, const sink_ptr &sink);
+
+// Create and register a logger with multiple sinks
+std::shared_ptr<logger> create(const std::string &logger_name, sinks_init_list sinks);
+
+template<class It>
+std::shared_ptr<logger> create(const std::string &logger_name, const It &sinks_begin, const It &sinks_end);
+
+// Create and register a logger with templated sink type
+// Example:
+// spdlog::create<daily_file_sink_st>("mylog", "dailylog_filename");
+template<typename Sink, typename... Args>
+std::shared_ptr<spdlog::logger> create(const std::string &logger_name, Args... args);
+
+// Create and register an async logger with a single sink
+std::shared_ptr<logger> create_async(const std::string &logger_name, const sink_ptr &sink, size_t queue_size,
+ const async_overflow_policy overflow_policy = async_overflow_policy::block_retry,
+ const std::function<void()> &worker_warmup_cb = nullptr,
+ const std::chrono::milliseconds &flush_interval_ms = std::chrono::milliseconds::zero(),
+ const std::function<void()> &worker_teardown_cb = nullptr);
+
+// Create and register an async logger with multiple sinks
+std::shared_ptr<logger> create_async(const std::string &logger_name, sinks_init_list sinks, size_t queue_size,
+ const async_overflow_policy overflow_policy = async_overflow_policy::block_retry,
+ const std::function<void()> &worker_warmup_cb = nullptr,
+ const std::chrono::milliseconds &flush_interval_ms = std::chrono::milliseconds::zero(),
+ const std::function<void()> &worker_teardown_cb = nullptr);
+
+template<class It>
+std::shared_ptr<logger> create_async(const std::string &logger_name, const It &sinks_begin, const It &sinks_end, size_t queue_size,
+ const async_overflow_policy overflow_policy = async_overflow_policy::block_retry,
+ const std::function<void()> &worker_warmup_cb = nullptr,
+ const std::chrono::milliseconds &flush_interval_ms = std::chrono::milliseconds::zero(),
+ const std::function<void()> &worker_teardown_cb = nullptr);
+
+// Register the given logger with the given name
+void register_logger(std::shared_ptr<logger> logger);
+
+// Apply a user defined function on all registered loggers
+// Example:
+// spdlog::apply_all([&](std::shared_ptr<spdlog::logger> l) {l->flush();});
+void apply_all(std::function<void(std::shared_ptr<logger>)> fun);
+
+// Drop the reference to the given logger
+void drop(const std::string &name);
+
+// Drop all references from the registry
+void drop_all();
+
+///////////////////////////////////////////////////////////////////////////////
+//
+// Trace & Debug can be switched on/off at compile time for zero cost debug statements.
+// Uncomment SPDLOG_DEBUG_ON/SPDLOG_TRACE_ON in tweakme.h to enable.
+// SPDLOG_TRACE(..) will also print current file and line.
+//
+// Example:
+// spdlog::set_level(spdlog::level::trace);
+// SPDLOG_TRACE(my_logger, "some trace message");
+// SPDLOG_TRACE(my_logger, "another trace message {} {}", 1, 2);
+// SPDLOG_DEBUG(my_logger, "some debug message {} {}", 3, 4);
+///////////////////////////////////////////////////////////////////////////////
+
+#ifdef SPDLOG_TRACE_ON
+#define SPDLOG_STR_H(x) #x
+#define SPDLOG_STR_HELPER(x) SPDLOG_STR_H(x)
+#ifdef _MSC_VER
+#define SPDLOG_TRACE(logger, ...) logger->trace("[ " __FILE__ "(" SPDLOG_STR_HELPER(__LINE__) ") ] " __VA_ARGS__)
+#else
+#define SPDLOG_TRACE(logger, ...) logger->trace("[ " __FILE__ ":" SPDLOG_STR_HELPER(__LINE__) " ] " __VA_ARGS__)
+#endif
+#else
+#define SPDLOG_TRACE(logger, ...) (void)0
+#endif
+
+#ifdef SPDLOG_DEBUG_ON
+#define SPDLOG_DEBUG(logger, ...) logger->debug(__VA_ARGS__)
+#else
+#define SPDLOG_DEBUG(logger, ...) (void)0
+#endif
+
+} // namespace spdlog
+
+#include "details/spdlog_impl.h"
diff --git a/lib/spdlog/tweakme.h b/lib/spdlog/tweakme.h
new file mode 100644
index 0000000..801e13e
--- /dev/null
+++ b/lib/spdlog/tweakme.h
@@ -0,0 +1,143 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+///////////////////////////////////////////////////////////////////////////////
+//
+// Edit this file to squeeze more performance, and to customize supported features
+//
+///////////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////////////////////////////////////////////
+// Under Linux, the much faster CLOCK_REALTIME_COARSE clock can be used.
+// This clock is less accurate - can be off by dozens of millis - depending on the kernel HZ.
+// Uncomment to use it instead of the regular clock.
+//
+// #define SPDLOG_CLOCK_COARSE
+///////////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////////////////////////////////////////////
+// Uncomment if date/time logging is not needed and never appear in the log pattern.
+// This will prevent spdlog from querying the clock on each log call.
+//
+// WARNING: If the log pattern contains any date/time while this flag is on, the result is undefined.
+// You must set new pattern(spdlog::set_pattern(..") without any date/time in it
+//
+// #define SPDLOG_NO_DATETIME
+///////////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////////////////////////////////////////////
+// Uncomment if thread id logging is not needed (i.e. no %t in the log pattern).
+// This will prevent spdlog from querying the thread id on each log call.
+//
+// WARNING: If the log pattern contains thread id (i.e, %t) while this flag is on, the result is undefined.
+//
+#define SPDLOG_NO_THREAD_ID
+///////////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////////////////////////////////////////////
+// Uncomment to prevent spdlog from caching thread ids in thread local storage.
+// By default spdlog saves thread ids in tls to gain a few micros for each call.
+//
+// WARNING: if your program forks, UNCOMMENT this flag to prevent undefined thread ids in the children logs.
+//
+#define SPDLOG_DISABLE_TID_CACHING
+///////////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////////////////////////////////////////////
+// Uncomment if logger name logging is not needed.
+// This will prevent spdlog from copying the logger name on each log call.
+//
+#define SPDLOG_NO_NAME
+///////////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////////////////////////////////////////////
+// Uncomment to enable the SPDLOG_DEBUG/SPDLOG_TRACE macros.
+//
+// #define SPDLOG_DEBUG_ON
+// #define SPDLOG_TRACE_ON
+///////////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////////////////////////////////////////////
+// Uncomment to avoid locking in the registry operations (spdlog::get(), spdlog::drop() spdlog::register()).
+// Use only if your code never modifies concurrently the registry.
+// Note that upon creating a logger the registry is modified by spdlog..
+//
+// #define SPDLOG_NO_REGISTRY_MUTEX
+///////////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////////////////////////////////////////////
+// Uncomment to avoid spdlog's usage of atomic log levels
+// Use only if your code never modifies a logger's log levels concurrently by different threads.
+//
+#define SPDLOG_NO_ATOMIC_LEVELS
+///////////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////////////////////////////////////////////
+// Uncomment to enable usage of wchar_t for file names on Windows.
+//
+// #define SPDLOG_WCHAR_FILENAMES
+///////////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////////////////////////////////////////////
+// Uncomment to override default eol ("\n" or "\r\n" under Linux/Windows)
+//
+// #define SPDLOG_EOL ";-)\n"
+///////////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////////////////////////////////////////////
+// Uncomment to use your own copy of the fmt library instead of spdlog's copy.
+// In this case spdlog will try to include <fmt/format.h> so set your -I flag accordingly.
+//
+// #define SPDLOG_FMT_EXTERNAL
+///////////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////////////////////////////////////////////
+// Uncomment to use printf-style messages in your logs instead of the usual
+// format-style used by default.
+//
+// #define SPDLOG_FMT_PRINTF
+///////////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////////////////////////////////////////////
+// Uncomment to enable syslog (disabled by default)
+//
+// #define SPDLOG_ENABLE_SYSLOG
+///////////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////////////////////////////////////////////
+// Uncomment to enable wchar_t support (convert to utf8)
+//
+// #define SPDLOG_WCHAR_TO_UTF8_SUPPORT
+///////////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////////////////////////////////////////////
+// Uncomment to prevent child processes from inheriting log file descriptors
+//
+// #define SPDLOG_PREVENT_CHILD_FD
+///////////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////////////////////////////////////////////
+// Uncomment if your compiler doesn't support the "final" keyword.
+// The final keyword allows more optimizations in release
+// mode with recent compilers. See GCC's documentation for -Wsuggest-final-types
+// for instance.
+//
+// #define SPDLOG_NO_FINAL
+///////////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////////////////////////////////////////////
+// Uncomment to enable message counting feature.
+// Use the %i in the logger pattern to display log message sequence id.
+//
+// #define SPDLOG_ENABLE_MESSAGE_COUNTER
+///////////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////////////////////////////////////////////
+// Uncomment to customize level names (e.g. "MT TRACE")
+//
+// #define SPDLOG_LEVEL_NAMES { "MY TRACE", "MY DEBUG", "MY INFO", "MY WARNING", "MY ERROR", "MY CRITICAL", "OFF" }
+///////////////////////////////////////////////////////////////////////////////