boost/system/detail/std_category.hpp
#ifndef BOOST_SYSTEM_DETAIL_STD_CATEGORY_HPP_INCLUDED
#define BOOST_SYSTEM_DETAIL_STD_CATEGORY_HPP_INCLUDED
// Support for interoperability between Boost.System and <system_error>
//
// Copyright 2018, 2021 Peter Dimov
//
// 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 <boost/system/detail/error_category.hpp>
#include <system_error>
//
namespace boost
{
namespace system
{
namespace detail
{
class BOOST_SYMBOL_VISIBLE std_category: public std::error_category
{
private:
boost::system::error_category const * pc_;
public:
boost::system::error_category const & original_category() const BOOST_NOEXCEPT
{
return *pc_;
}
public:
explicit std_category( boost::system::error_category const * pc, unsigned id ): pc_( pc )
{
if( id != 0 )
{
#if defined(_MSC_VER) && defined(_CPPLIB_VER) && _MSC_VER >= 1900 && _MSC_VER < 2000
// Poking into the protected _Addr member of std::error_category
// is not a particularly good programming practice, but what can
// you do
_Addr = id;
#endif
}
}
const char * name() const BOOST_NOEXCEPT BOOST_OVERRIDE
{
return pc_->name();
}
std::string message( int ev ) const BOOST_OVERRIDE
{
return pc_->message( ev );
}
std::error_condition default_error_condition( int ev ) const BOOST_NOEXCEPT BOOST_OVERRIDE
{
return pc_->default_error_condition( ev );
}
inline bool equivalent( int code, const std::error_condition & condition ) const BOOST_NOEXCEPT BOOST_OVERRIDE;
inline bool equivalent( const std::error_code & code, int condition ) const BOOST_NOEXCEPT BOOST_OVERRIDE;
};
} // namespace detail
} // namespace system
} // namespace boost
#endif // #ifndef BOOST_SYSTEM_DETAIL_STD_CATEGORY_HPP_INCLUDED