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authorJörg Frings-Fürst <debian@jff-webhosting.net>2018-07-11 07:33:08 +0200
committerJörg Frings-Fürst <debian@jff-webhosting.net>2018-07-11 07:33:08 +0200
commit621f4acf1406e51eaf5d9429c46625e6f5fde98e (patch)
tree0fe1fd92a0502602f54b2bf12a8c247ef575d00f /lib/spdlog/fmt/bundled/ostream.h
parent25d4e8d5ee396a852568b7ae1c15971a9da409db (diff)
parent5aa4b715375b173e9c24363f977883786b05cd6d (diff)
Merge branch 'release/debian/2.0.0-1'debian/2.0.0-1
Diffstat (limited to 'lib/spdlog/fmt/bundled/ostream.h')
-rw-r--r--lib/spdlog/fmt/bundled/ostream.h117
1 files changed, 117 insertions, 0 deletions
diff --git a/lib/spdlog/fmt/bundled/ostream.h b/lib/spdlog/fmt/bundled/ostream.h
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+++ b/lib/spdlog/fmt/bundled/ostream.h
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+/*
+ 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_