74 lines
2.2 KiB
C++
74 lines
2.2 KiB
C++
// Copyright Kevlin Henney, 2000-2005.
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// Copyright Alexander Nasonov, 2006-2010.
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// Copyright Antony Polukhin, 2011-2024.
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//
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// Distributed under the Boost Software License, Version 1.0. (See
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// accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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#ifndef BOOST_LEXICAL_CAST_DETAIL_CONVERTER_LEXICAL_BASIC_UNLOCKEDBUF_HPP
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#define BOOST_LEXICAL_CAST_DETAIL_CONVERTER_LEXICAL_BASIC_UNLOCKEDBUF_HPP
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#include <boost/config.hpp>
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#ifdef BOOST_HAS_PRAGMA_ONCE
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# pragma once
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#endif
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#ifdef BOOST_NO_STRINGSTREAM
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#include <strstream>
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#else
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#include <sstream>
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#endif
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#include <boost/detail/basic_pointerbuf.hpp>
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#ifndef BOOST_NO_CWCHAR
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# include <cwchar>
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#endif
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namespace boost { namespace detail { namespace lcast {
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// acts as a stream buffer which wraps around a pair of pointers
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// and gives acces to internals
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template <class BufferType, class CharT>
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class basic_unlockedbuf : public basic_pointerbuf<CharT, BufferType> {
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public:
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typedef basic_pointerbuf<CharT, BufferType> base_type;
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typedef typename base_type::streamsize streamsize;
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using base_type::pptr;
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using base_type::pbase;
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using base_type::setbuf;
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};
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#if defined(BOOST_NO_STRINGSTREAM)
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template <class CharT, class Traits>
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using out_stream_t = std::ostream;
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template <class CharT, class Traits>
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using stringbuffer_t = basic_unlockedbuf<std::strstreambuf, char>;
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#elif defined(BOOST_NO_STD_LOCALE)
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template <class CharT, class Traits>
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using out_stream_t = std::ostream;
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template <class CharT, class Traits>
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using stringbuffer_t = basic_unlockedbuf<std::stringbuf, char>;
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template <class CharT, class Traits>
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using buffer_t = basic_unlockedbuf<std::streambuf, char>;
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#else
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template <class CharT, class Traits>
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using out_stream_t = std::basic_ostream<CharT, Traits>;
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template <class CharT, class Traits>
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using stringbuffer_t = basic_unlockedbuf<std::basic_stringbuf<CharT, Traits>, CharT>;
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template <class CharT, class Traits>
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using buffer_t = basic_unlockedbuf<std::basic_streambuf<CharT, Traits>, CharT>;
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#endif
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}}} // namespace boost::detail::lcast
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#endif // BOOST_LEXICAL_CAST_DETAIL_CONVERTER_LEXICAL_BASIC_UNLOCKEDBUF_HPP
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