1 // (C) Copyright 2008 CodeRage, LLC (turkanis at coderage dot com)
2 // (C) Copyright 2003-2007 Jonathan Turkanis
3 // Distributed under the Boost Software License, Version 1.0. (See accompanying
4 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt.)
6 // Provides std::char_traits for libraries without templated streams. Should not
7 // be confused with <boost/iostreams/char_traits.hpp>, which defines the
8 // template boost::iostreams::char_traits.
10 // See http://www.boost.org/libs/iostreams for documentation.
12 #ifndef BOOST_IOSTREAMS_DETAIL_CHAR_TRAITS_HPP_INCLUDED
13 #define BOOST_IOSTREAMS_DETAIL_CHAR_TRAITS_HPP_INCLUDED
20 #include <boost/iostreams/detail/config/wide_streams.hpp>
21 #ifdef BOOST_IOSTREAMS_NO_STREAM_TEMPLATES
22 # include <boost/config.hpp> // Make sure size_t is in std.
28 #ifndef BOOST_IOSTREAMS_NO_STREAM_TEMPLATES //--------------------------------//
29 # define BOOST_IOSTREAMS_CHAR_TRAITS(ch) std::char_traits< ch >
31 # define BOOST_IOSTREAMS_CHAR_TRAITS(ch) boost::iostreams::detail::char_traits
33 namespace boost { namespace iostreams { namespace detail {
36 typedef char char_type;
38 typedef std::streampos pos_type;
39 typedef std::streamoff off_type;
41 // Note: this may not be not conforming, since it treats chars as unsigned,
42 // but is only used to test for equality.
43 static int compare(const char* lhs, const char* rhs, std::size_t n)
44 { return std::strncmp(lhs, rhs, n); }
45 static char* copy(char *dest, const char *src, std::size_t n)
46 { return static_cast<char*>(std::memcpy(dest, src, n)); }
47 static char* move(char *dest, const char *src, std::size_t n)
48 { return static_cast<char*>(std::memmove(dest, src, n)); }
49 static const char* find(const char* s, std::size_t n, const char& c)
50 { return (const char*) (const void*) std::memchr(s, c, n); }
51 static char to_char_type(const int& c) { return c; }
52 static int to_int_type(const char& c) { return c; }
53 static bool eq_int_type(const int& lhs, const int& rhs)
54 { return lhs == rhs; }
55 static int eof() { return EOF; }
56 static int not_eof(const int& c) { return c != EOF ? c : '\n'; }
59 } } } // End namespaces detail, iostreams, boost.
61 #endif // #ifdef BOOST_IOSTREAMS_NO_STREAM_TEMPLATES //-----------------------//
63 #endif // #ifndef BOOST_IOSTREAMS_DETAIL_CHAR_TRAITS_HPP_INCLUDED