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64 lines
2.5 KiB
64 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)
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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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