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63 lines
2.5 KiB
63 lines
2.5 KiB
// (C) Copyright 2008 CodeRage, LLC (turkanis at coderage dot com) |
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// (C) Copyright 2003-2007 Jonathan Turkanis |
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// Distributed under the Boost Software License, Version 1.0. (See accompanying |
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt.) |
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// Provides std::char_traits for libraries without templated streams. Should not |
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// be confused with <boost/iostreams/char_traits.hpp>, which defines the |
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// template boost::iostreams::char_traits. |
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// See http://www.boost.org/libs/iostreams for documentation. |
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#ifndef BOOST_IOSTREAMS_DETAIL_CHAR_TRAITS_HPP_INCLUDED |
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#define BOOST_IOSTREAMS_DETAIL_CHAR_TRAITS_HPP_INCLUDED |
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#if defined(_MSC_VER) && (_MSC_VER >= 1020) |
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# pragma once |
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#endif |
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#include <iosfwd> |
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#include <boost/iostreams/detail/config/wide_streams.hpp> |
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#ifdef BOOST_IOSTREAMS_NO_STREAM_TEMPLATES |
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# include <boost/config.hpp> // Make sure size_t is in std. |
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# include <cstddef> |
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# include <cstring> |
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# include <cstdio> |
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#endif |
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#ifndef BOOST_IOSTREAMS_NO_STREAM_TEMPLATES //--------------------------------// |
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# define BOOST_IOSTREAMS_CHAR_TRAITS(ch) std::char_traits< ch > |
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#else |
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# define BOOST_IOSTREAMS_CHAR_TRAITS(ch) boost::iostreams::detail::char_traits |
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namespace boost { namespace iostreams { namespace detail { |
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struct char_traits { |
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typedef char char_type; |
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typedef int int_type; |
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typedef std::streampos pos_type; |
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typedef std::streamoff off_type; |
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// Note: this may not be not conforming, since it treats chars as unsigned, |
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// but is only used to test for equality. |
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static int compare(const char* lhs, const char* rhs, std::size_t n) |
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{ return std::strncmp(lhs, rhs, n); } |
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static char* copy(char *dest, const char *src, std::size_t n) |
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{ return static_cast<char*>(std::memcpy(dest, src, n)); } |
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static char* move(char *dest, const char *src, std::size_t n) |
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{ return static_cast<char*>(std::memmove(dest, src, n)); } |
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static const char* find(const char* s, std::size_t n, const char& c) |
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{ return (const char*) (const void*) std::memchr(s, c, n); } |
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static char to_char_type(const int& c) { return c; } |
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static int to_int_type(const char& c) { return c; } |
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static bool eq_int_type(const int& lhs, const int& rhs) |
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{ return lhs == rhs; } |
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static int eof() { return EOF; } |
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static int not_eof(const int& c) { return c != EOF ? c : '\n'; } |
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}; |
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} } } // End namespaces detail, iostreams, boost. |
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#endif // #ifdef BOOST_IOSTREAMS_NO_STREAM_TEMPLATES //-----------------------// |
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#endif // #ifndef BOOST_IOSTREAMS_DETAIL_CHAR_TRAITS_HPP_INCLUDED
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