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+/*
+ *
+ * Copyright (c) 1998-2002
+ * John Maddock
+ *
+ * Use, modification and distribution are subject to the
+ * Boost Software License, Version 1.0. (See accompanying file
+ * LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+ *
+ */
+
+ /*
+ * LOCATION: see http://www.boost.org for most recent version.
+ * FILE regex_raw_buffer.hpp
+ * VERSION see <cutl/details/boost/version.hpp>
+ * DESCRIPTION: Raw character buffer for regex code.
+ * Note this is an internal header file included
+ * by regex.hpp, do not include on its own.
+ */
+
+#ifndef BOOST_REGEX_RAW_BUFFER_HPP
+#define BOOST_REGEX_RAW_BUFFER_HPP
+
+#ifndef BOOST_REGEX_CONFIG_HPP
+#include <cutl/details/boost/regex/config.hpp>
+#endif
+
+#include <algorithm>
+#include <cstddef>
+
+namespace cutl_details_boost{
+ namespace re_detail{
+
+#ifdef BOOST_MSVC
+#pragma warning(push)
+#pragma warning(disable: 4103)
+#endif
+#ifdef BOOST_HAS_ABI_HEADERS
+# include BOOST_ABI_PREFIX
+#endif
+#ifdef BOOST_MSVC
+#pragma warning(pop)
+#endif
+
+struct empty_padding{};
+
+union padding
+{
+ void* p;
+ unsigned int i;
+};
+
+template <int N>
+struct padding3
+{
+ enum{
+ padding_size = 8,
+ padding_mask = 7
+ };
+};
+
+template<>
+struct padding3<2>
+{
+ enum{
+ padding_size = 2,
+ padding_mask = 1
+ };
+};
+
+template<>
+struct padding3<4>
+{
+ enum{
+ padding_size = 4,
+ padding_mask = 3
+ };
+};
+
+template<>
+struct padding3<8>
+{
+ enum{
+ padding_size = 8,
+ padding_mask = 7
+ };
+};
+
+template<>
+struct padding3<16>
+{
+ enum{
+ padding_size = 16,
+ padding_mask = 15
+ };
+};
+
+enum{
+ padding_size = padding3<sizeof(padding)>::padding_size,
+ padding_mask = padding3<sizeof(padding)>::padding_mask
+};
+
+//
+// class raw_storage
+// basically this is a simplified vector<unsigned char>
+// this is used by basic_regex for expression storage
+//
+
+class BOOST_REGEX_DECL raw_storage
+{
+public:
+ typedef std::size_t size_type;
+ typedef unsigned char* pointer;
+private:
+ pointer last, start, end;
+public:
+
+ raw_storage();
+ raw_storage(size_type n);
+
+ ~raw_storage()
+ {
+ ::operator delete(start);
+ }
+
+ void BOOST_REGEX_CALL resize(size_type n);
+
+ void* BOOST_REGEX_CALL extend(size_type n)
+ {
+ if(size_type(last - end) < n)
+ resize(n + (end - start));
+ register pointer result = end;
+ end += n;
+ return result;
+ }
+
+ void* BOOST_REGEX_CALL insert(size_type pos, size_type n);
+
+ size_type BOOST_REGEX_CALL size()
+ {
+ return end - start;
+ }
+
+ size_type BOOST_REGEX_CALL capacity()
+ {
+ return last - start;
+ }
+
+ void* BOOST_REGEX_CALL data()const
+ {
+ return start;
+ }
+
+ size_type BOOST_REGEX_CALL index(void* ptr)
+ {
+ return static_cast<pointer>(ptr) - static_cast<pointer>(data());
+ }
+
+ void BOOST_REGEX_CALL clear()
+ {
+ end = start;
+ }
+
+ void BOOST_REGEX_CALL align()
+ {
+ // move end up to a boundary:
+ end = start + (((end - start) + padding_mask) & ~padding_mask);
+ }
+ void swap(raw_storage& that)
+ {
+ std::swap(start, that.start);
+ std::swap(end, that.end);
+ std::swap(last, that.last);
+ }
+};
+
+inline raw_storage::raw_storage()
+{
+ last = start = end = 0;
+}
+
+inline raw_storage::raw_storage(size_type n)
+{
+ start = end = static_cast<pointer>(::operator new(n));
+ BOOST_REGEX_NOEH_ASSERT(start)
+ last = start + n;
+}
+
+
+#ifdef BOOST_MSVC
+#pragma warning(push)
+#pragma warning(disable: 4103)
+#endif
+#ifdef BOOST_HAS_ABI_HEADERS
+# include BOOST_ABI_SUFFIX
+#endif
+#ifdef BOOST_MSVC
+#pragma warning(pop)
+#endif
+
+} // namespace re_detail
+} // namespace cutl_details_boost
+
+#endif
+
+
+
+
+
+