Chris@16: // (C) Copyright 2008 CodeRage, LLC (turkanis at coderage dot com)
Chris@16: // (C) Copyright 2003-2007 Jonathan Turkanis
Chris@16: // Distributed under the Boost Software License, Version 1.0. (See accompanying
Chris@16: // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt.)
Chris@16: 
Chris@16: // Provides std::char_traits for libraries without templated streams. Should not
Chris@16: // be confused with <boost/iostreams/char_traits.hpp>, which defines the
Chris@16: // template boost::iostreams::char_traits.
Chris@16: 
Chris@16: // See http://www.boost.org/libs/iostreams for documentation.
Chris@16: 
Chris@16: #ifndef BOOST_IOSTREAMS_DETAIL_CHAR_TRAITS_HPP_INCLUDED
Chris@16: #define BOOST_IOSTREAMS_DETAIL_CHAR_TRAITS_HPP_INCLUDED
Chris@16: 
Chris@16: #if defined(_MSC_VER) && (_MSC_VER >= 1020)
Chris@16: # pragma once
Chris@16: #endif
Chris@16: 
Chris@16: #include <iosfwd>
Chris@16: #include <boost/iostreams/detail/config/wide_streams.hpp>
Chris@16: #ifdef BOOST_IOSTREAMS_NO_STREAM_TEMPLATES
Chris@16: # include <boost/config.hpp> // Make sure size_t is in std.
Chris@16: # include <cstddef>
Chris@16: # include <cstring>
Chris@16: # include <cstdio>
Chris@16: #endif
Chris@16: 
Chris@16: #ifndef BOOST_IOSTREAMS_NO_STREAM_TEMPLATES //--------------------------------//
Chris@16: # define BOOST_IOSTREAMS_CHAR_TRAITS(ch) std::char_traits< ch >
Chris@16: #else
Chris@16: # define BOOST_IOSTREAMS_CHAR_TRAITS(ch) boost::iostreams::detail::char_traits
Chris@16: 
Chris@16: namespace boost { namespace iostreams { namespace detail {
Chris@16: 
Chris@16: struct char_traits  {
Chris@16:     typedef char            char_type;
Chris@16:     typedef int             int_type;
Chris@16:     typedef std::streampos  pos_type;
Chris@16:     typedef std::streamoff  off_type;
Chris@16: 
Chris@16:     // Note: this may not be not conforming, since it treats chars as unsigned,
Chris@16:     // but is only used to test for equality.
Chris@16:     static int compare(const char* lhs, const char* rhs, std::size_t n)
Chris@16:     { return std::strncmp(lhs, rhs, n); }
Chris@16:     static char* copy(char *dest, const char *src, std::size_t n)
Chris@16:     { return static_cast<char*>(std::memcpy(dest, src, n)); }
Chris@16:     static char* move(char *dest, const char *src, std::size_t n)
Chris@16:     { return static_cast<char*>(std::memmove(dest, src, n)); }
Chris@16:     static const char* find(const char* s, std::size_t n, const char& c)
Chris@16:     { return (const char*) (const void*) std::memchr(s, c, n); }
Chris@16:     static char to_char_type(const int& c) { return c; }
Chris@16:     static int to_int_type(const char& c) { return c; }
Chris@16:     static bool eq_int_type(const int& lhs, const int& rhs)
Chris@16:     { return lhs == rhs; }
Chris@16:     static int eof() { return EOF; }
Chris@16:     static int not_eof(const int& c) { return c != EOF ? c : '\n'; }
Chris@16: };
Chris@16: 
Chris@16: } } } // End namespaces detail, iostreams, boost.
Chris@16: 
Chris@16: #endif // #ifdef BOOST_IOSTREAMS_NO_STREAM_TEMPLATES //-----------------------//
Chris@16: 
Chris@16: #endif // #ifndef BOOST_IOSTREAMS_DETAIL_CHAR_TRAITS_HPP_INCLUDED