| 1 | // Copyright Kevlin Henney, 2000-2005. |
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| 2 | // Copyright Alexander Nasonov, 2006-2010. |
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| 3 | // Copyright Antony Polukhin, 2011-2024. |
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| 4 | // |
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| 5 | // Distributed under the Boost Software License, Version 1.0. (See |
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| 6 | // accompanying file LICENSE_1_0.txt or copy at |
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| 7 | // http://www.boost.org/LICENSE_1_0.txt) |
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| 8 | |
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| 9 | #ifndef BOOST_LEXICAL_CAST_DETAIL_CONVERTER_LEXICAL_BASIC_UNLOCKEDBUF_HPP |
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| 10 | #define BOOST_LEXICAL_CAST_DETAIL_CONVERTER_LEXICAL_BASIC_UNLOCKEDBUF_HPP |
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| 11 | |
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| 12 | #include <boost/config.hpp> |
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| 13 | #ifdef BOOST_HAS_PRAGMA_ONCE |
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| 14 | # pragma once |
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| 15 | #endif |
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| 16 | |
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| 17 | |
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| 18 | #ifdef BOOST_NO_STRINGSTREAM |
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| 19 | #include <strstream> |
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| 20 | #else |
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| 21 | #include <sstream> |
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| 22 | #endif |
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| 23 | |
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| 24 | #include <boost/detail/basic_pointerbuf.hpp> |
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| 25 | #ifndef BOOST_NO_CWCHAR |
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| 26 | # include <cwchar> |
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| 27 | #endif |
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| 28 | |
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| 29 | namespace boost { namespace detail { namespace lcast { |
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| 30 | |
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| 31 | // acts as a stream buffer which wraps around a pair of pointers |
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| 32 | // and gives acces to internals |
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| 33 | template <class BufferType, class CharT> |
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| 34 | class basic_unlockedbuf : public basic_pointerbuf<CharT, BufferType> { |
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| 35 | public: |
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| 36 | typedef basic_pointerbuf<CharT, BufferType> base_type; |
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| 37 | typedef typename base_type::streamsize streamsize; |
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| 38 | |
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| 39 | using base_type::pptr; |
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| 40 | using base_type::pbase; |
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| 41 | using base_type::setbuf; |
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| 42 | }; |
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| 43 | |
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| 44 | #if defined(BOOST_NO_STRINGSTREAM) |
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| 45 | template <class CharT, class Traits> |
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| 46 | using out_stream_t = std::ostream; |
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| 47 | |
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| 48 | template <class CharT, class Traits> |
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| 49 | using stringbuffer_t = basic_unlockedbuf<std::strstreambuf, char>; |
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| 50 | #elif defined(BOOST_NO_STD_LOCALE) |
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| 51 | template <class CharT, class Traits> |
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| 52 | using out_stream_t = std::ostream; |
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| 53 | |
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| 54 | template <class CharT, class Traits> |
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| 55 | using stringbuffer_t = basic_unlockedbuf<std::stringbuf, char>; |
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| 56 | |
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| 57 | template <class CharT, class Traits> |
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| 58 | using buffer_t = basic_unlockedbuf<std::streambuf, char>; |
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| 59 | #else |
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| 60 | template <class CharT, class Traits> |
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| 61 | using out_stream_t = std::basic_ostream<CharT, Traits>; |
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| 62 | |
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| 63 | template <class CharT, class Traits> |
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| 64 | using stringbuffer_t = basic_unlockedbuf<std::basic_stringbuf<CharT, Traits>, CharT>; |
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| 65 | |
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| 66 | template <class CharT, class Traits> |
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| 67 | using buffer_t = basic_unlockedbuf<std::basic_streambuf<CharT, Traits>, CharT>; |
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| 68 | #endif |
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| 69 | |
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| 70 | }}} // namespace boost::detail::lcast |
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| 71 | |
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| 72 | #endif // BOOST_LEXICAL_CAST_DETAIL_CONVERTER_LEXICAL_BASIC_UNLOCKEDBUF_HPP |
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| 73 | |
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| 74 | |
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