#ifndef BOOST_SYSTEM_DETAIL_ERROR_CATEGORY_IMPL_HPP_INCLUDED #define BOOST_SYSTEM_DETAIL_ERROR_CATEGORY_IMPL_HPP_INCLUDED // Copyright Beman Dawes 2006, 2007 // Copyright Christoper Kohlhoff 2007 // Copyright Peter Dimov 2017, 2018 // // Distributed under the Boost Software License, Version 1.0. (See accompanying // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) // // See library home page at http://www.boost.org/libs/system #include #include #include #include #include #include namespace boost { namespace system { // error_category default implementation inline error_condition error_category::default_error_condition( int ev ) const BOOST_NOEXCEPT { return error_condition( ev, *this ); } inline bool error_category::equivalent( int code, const error_condition & condition ) const BOOST_NOEXCEPT { return default_error_condition( code ) == condition; } inline bool error_category::equivalent( const error_code & code, int condition ) const BOOST_NOEXCEPT { return *this == code.category() && code.value() == condition; } inline char const * error_category::message( int ev, char * buffer, std::size_t len ) const BOOST_NOEXCEPT { if( len == 0 ) { return buffer; } if( len == 1 ) { buffer[0] = 0; return buffer; } #if !defined(BOOST_NO_EXCEPTIONS) try #endif { std::string m = this->message( ev ); # if defined( BOOST_MSVC ) # pragma warning( push ) # pragma warning( disable: 4996 ) # elif defined(__clang__) && defined(__has_warning) # pragma clang diagnostic push # if __has_warning("-Wdeprecated-declarations") # pragma clang diagnostic ignored "-Wdeprecated-declarations" # endif # endif std::strncpy( buffer, m.c_str(), len - 1 ); buffer[ len-1 ] = 0; # if defined( BOOST_MSVC ) # pragma warning( pop ) # elif defined(__clang__) && defined(__has_warning) # pragma clang diagnostic pop # endif return buffer; } #if !defined(BOOST_NO_EXCEPTIONS) catch( ... ) { return "Message text unavailable"; } #endif } } // namespace system } // namespace boost // interoperability with std::error_code, std::error_condition #if defined(BOOST_SYSTEM_HAS_SYSTEM_ERROR) #include inline boost::system::error_category::operator std::error_category const & () const { return boost::system::detail::to_std_category( *this ); } #endif // #if defined(BOOST_SYSTEM_HAS_SYSTEM_ERROR) #endif // #ifndef BOOST_SYSTEM_DETAIL_ERROR_CATEGORY_IMPL_HPP_INCLUDED