108 lines
2.8 KiB
C++
Executable File
108 lines
2.8 KiB
C++
Executable File
#ifndef BOOST_SYSTEM_DETAIL_INTEROP_CATEGORY_HPP_INCLUDED
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#define BOOST_SYSTEM_DETAIL_INTEROP_CATEGORY_HPP_INCLUDED
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// Copyright Beman Dawes 2006, 2007
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// Copyright Christoper Kohlhoff 2007
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// Copyright Peter Dimov 2017, 2018, 2021
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//
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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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//
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// See library home page at http://www.boost.org/libs/system
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#include <boost/system/detail/error_category.hpp>
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#include <boost/system/detail/snprintf.hpp>
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#include <boost/system/detail/config.hpp>
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#include <boost/config.hpp>
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namespace boost
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{
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namespace system
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{
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namespace detail
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{
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// interop_error_category, used for std::error_code
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#if ( defined( BOOST_GCC ) && BOOST_GCC >= 40600 ) || defined( BOOST_CLANG )
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wnon-virtual-dtor"
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#endif
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class BOOST_SYMBOL_VISIBLE interop_error_category: public error_category
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{
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public:
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BOOST_SYSTEM_CONSTEXPR interop_error_category() BOOST_NOEXCEPT:
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error_category( detail::interop_category_id )
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{
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}
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const char * name() const BOOST_NOEXCEPT BOOST_OVERRIDE
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{
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return "std:unknown";
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}
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std::string message( int ev ) const BOOST_OVERRIDE;
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char const * message( int ev, char * buffer, std::size_t len ) const BOOST_NOEXCEPT BOOST_OVERRIDE;
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};
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#if ( defined( BOOST_GCC ) && BOOST_GCC >= 40600 ) || defined( BOOST_CLANG )
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#pragma GCC diagnostic pop
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#endif
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inline char const * interop_error_category::message( int ev, char * buffer, std::size_t len ) const BOOST_NOEXCEPT
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{
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detail::snprintf( buffer, len, "Unknown interop error %d", ev );
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return buffer;
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}
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inline std::string interop_error_category::message( int ev ) const
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{
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char buffer[ 48 ];
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return message( ev, buffer, sizeof( buffer ) );
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}
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// interop_category()
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#if defined(BOOST_SYSTEM_HAS_CONSTEXPR)
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template<class T> struct BOOST_SYMBOL_VISIBLE interop_cat_holder
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{
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static constexpr interop_error_category instance{};
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};
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// Before C++17 it was mandatory to redeclare all static constexpr
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#if defined(BOOST_NO_CXX17_INLINE_VARIABLES)
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template<class T> constexpr interop_error_category interop_cat_holder<T>::instance;
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#endif
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constexpr error_category const & interop_category() BOOST_NOEXCEPT
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{
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return interop_cat_holder<void>::instance;
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}
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#else // #if defined(BOOST_SYSTEM_HAS_CONSTEXPR)
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#if !defined(__SUNPRO_CC) // trailing __global is not supported
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inline error_category const & interop_category() BOOST_NOEXCEPT BOOST_SYMBOL_VISIBLE;
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#endif
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inline error_category const & interop_category() BOOST_NOEXCEPT
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{
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static const detail::interop_error_category instance;
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return instance;
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}
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#endif // #if defined(BOOST_SYSTEM_HAS_CONSTEXPR)
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} // namespace detail
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} // namespace system
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} // namespace boost
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#endif // #ifndef BOOST_SYSTEM_DETAIL_INTEROP_CATEGORY_HPP_INCLUDED
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