sl@0: // (C) Copyright Jonathan Turkanis 2003.
sl@0: // Distributed under the Boost Software License, Version 1.0. (See accompanying
sl@0: // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt.)
sl@0: 
sl@0: // See http://www.boost.org/libs/iostreams for documentation.
sl@0: 
sl@0: #ifndef BOOST_IOSTREAMS_CHAR_TRAITS_HPP_INCLUDED
sl@0: #define BOOST_IOSTREAMS_CHAR_TRAITS_HPP_INCLUDED
sl@0: 
sl@0: #if defined(_MSC_VER) && (_MSC_VER >= 1020)
sl@0: # pragma once
sl@0: #endif 
sl@0: 
sl@0: #include <boost/config.hpp>
sl@0: #include <cstddef>
sl@0: #include <cstdio>  // EOF.
sl@0: #include <string>  // std::char_traits.
sl@0: #include <boost/iostreams/detail/char_traits.hpp>
sl@0: #include <boost/iostreams/detail/config/wide_streams.hpp>
sl@0: #ifndef BOOST_IOSTREAMS_NO_WIDE_STREAMS
sl@0: # include <cwchar>
sl@0: #endif
sl@0: 
sl@0: #ifdef BOOST_NO_STDC_NAMESPACE
sl@0: namespace std { using ::wint_t; }
sl@0: #endif
sl@0: 
sl@0: namespace boost { namespace iostreams {
sl@0: 
sl@0: // Dinkumware that comes with QNX Momentics 6.3.0, 4.0.2, incorrectly defines the
sl@0: // EOF and WEOF macros to not std:: qualify the wint_t type (and so does
sl@0: // Sun C++ 5.8 + STLport 4). Fix by placing the def in this scope.
sl@0: // NOTE: Use BOOST_WORKAROUND?
sl@0: #if (defined(__QNX__) && defined(BOOST_DINKUMWARE_STDLIB))  \
sl@0:     || defined(__SUNPRO_CC)
sl@0: using ::std::wint_t;
sl@0: #endif
sl@0: 
sl@0: const int WOULD_BLOCK = (int) (EOF - 1);
sl@0: 
sl@0: #ifndef BOOST_IOSTREAMS_NO_WIDE_STREAMS
sl@0: const std::wint_t WWOULD_BLOCK = (std::wint_t) (WEOF - 1);
sl@0: #endif
sl@0: 
sl@0: template<typename Ch>
sl@0: struct char_traits;
sl@0: 
sl@0: template<>
sl@0: struct char_traits<char> : BOOST_IOSTREAMS_CHAR_TRAITS(char) {
sl@0:     static char newline() { return '\n'; }
sl@0:     static int good() { return '\n'; }
sl@0:     static int would_block() { return WOULD_BLOCK; }
sl@0:     static bool is_good(int c) { return c != EOF && c != WOULD_BLOCK; }
sl@0:     static bool is_eof(int c) { return c == EOF; }
sl@0:     static bool would_block(int c) { return c == WOULD_BLOCK; }
sl@0: };
sl@0: 
sl@0: #ifndef BOOST_IOSTREAMS_NO_WIDE_STREAMS
sl@0: template<>
sl@0: struct char_traits<wchar_t> : std::char_traits<wchar_t> {
sl@0:     static wchar_t newline() { return L'\n'; }
sl@0:     static std::wint_t good() { return L'\n'; }
sl@0:     static std::wint_t would_block() { return WWOULD_BLOCK; }
sl@0:     static bool is_good(std::wint_t c) { return c != WEOF && c != WWOULD_BLOCK; }
sl@0:     static bool is_eof(std::wint_t c) { return c == WEOF; }
sl@0:     static bool would_block(std::wint_t c) { return c == WWOULD_BLOCK; }
sl@0: };
sl@0: #endif
sl@0: 
sl@0: } } // End namespaces iostreams, boost.
sl@0: 
sl@0: #endif // #ifndef BOOST_IOSTREAMS_CHAR_TRAITS_HPP_INCLUDED