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- #ifndef BOOST_THROW_EXCEPTION_HPP_INCLUDED
- #define BOOST_THROW_EXCEPTION_HPP_INCLUDED
- // MS compatible compilers support #pragma once
- #if defined(_MSC_VER) && (_MSC_VER >= 1020)
- # pragma once
- #endif
- //
- // boost/throw_exception.hpp
- //
- // Copyright (c) 2002, 2018, 2019 Peter Dimov
- // Copyright (c) 2008-2009 Emil Dotchevski and Reverge Studios, Inc.
- //
- // 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)
- //
- // http://www.boost.org/libs/throw_exception
- //
- #include <boost/exception/exception.hpp>
- #include <boost/assert/source_location.hpp>
- #include <boost/config.hpp>
- #include <boost/config/workaround.hpp>
- #include <exception>
- #if !defined( BOOST_EXCEPTION_DISABLE ) && defined( BOOST_BORLANDC ) && BOOST_WORKAROUND( BOOST_BORLANDC, BOOST_TESTED_AT(0x593) )
- # define BOOST_EXCEPTION_DISABLE
- #endif
- namespace boost
- {
- #if defined( BOOST_NO_EXCEPTIONS )
- BOOST_NORETURN void throw_exception( std::exception const & e ); // user defined
- BOOST_NORETURN void throw_exception( std::exception const & e, boost::source_location const & loc ); // user defined
- #endif
- // boost::wrapexcept<E>
- namespace detail
- {
- typedef char (&wrapexcept_s1)[ 1 ];
- typedef char (&wrapexcept_s2)[ 2 ];
- template<class T> wrapexcept_s1 wrapexcept_is_convertible( T* );
- template<class T> wrapexcept_s2 wrapexcept_is_convertible( void* );
- template<class E, class B, int I = sizeof( wrapexcept_is_convertible<B>( static_cast< E* >( 0 ) ) ) > struct wrapexcept_add_base;
- template<class E, class B> struct wrapexcept_add_base<E, B, 1>
- {
- struct type {};
- };
- template<class E, class B> struct wrapexcept_add_base<E, B, 2>
- {
- typedef B type;
- };
- } // namespace detail
- template<class E> struct BOOST_SYMBOL_VISIBLE wrapexcept:
- public detail::wrapexcept_add_base<E, boost::exception_detail::clone_base>::type,
- public E,
- public detail::wrapexcept_add_base<E, boost::exception>::type
- {
- private:
- struct deleter
- {
- wrapexcept * p_;
- ~deleter() { delete p_; }
- };
- private:
- void copy_from( void const* )
- {
- }
- void copy_from( boost::exception const* p )
- {
- static_cast<boost::exception&>( *this ) = *p;
- }
- public:
- explicit wrapexcept( E const & e ): E( e )
- {
- copy_from( &e );
- }
- explicit wrapexcept( E const & e, boost::source_location const & loc ): E( e )
- {
- copy_from( &e );
- set_info( *this, throw_file( loc.file_name() ) );
- set_info( *this, throw_line( loc.line() ) );
- set_info( *this, throw_function( loc.function_name() ) );
- }
- virtual boost::exception_detail::clone_base const * clone() const BOOST_OVERRIDE
- {
- wrapexcept * p = new wrapexcept( *this );
- deleter del = { p };
- boost::exception_detail::copy_boost_exception( p, this );
- del.p_ = 0;
- return p;
- }
- virtual void rethrow() const BOOST_OVERRIDE
- {
- #if defined( BOOST_NO_EXCEPTIONS )
- boost::throw_exception( *this );
- #else
- throw *this;
- #endif
- }
- };
- // All boost exceptions are required to derive from std::exception,
- // to ensure compatibility with BOOST_NO_EXCEPTIONS.
- inline void throw_exception_assert_compatibility( std::exception const & ) {}
- // boost::throw_exception
- #if !defined( BOOST_NO_EXCEPTIONS )
- #if defined( BOOST_EXCEPTION_DISABLE )
- template<class E> BOOST_NORETURN void throw_exception( E const & e )
- {
- throw_exception_assert_compatibility( e );
- throw e;
- }
- template<class E> BOOST_NORETURN void throw_exception( E const & e, boost::source_location const & )
- {
- throw_exception_assert_compatibility( e );
- throw e;
- }
- #else // defined( BOOST_EXCEPTION_DISABLE )
- template<class E> BOOST_NORETURN void throw_exception( E const & e )
- {
- throw_exception_assert_compatibility( e );
- throw wrapexcept<E>( e );
- }
- template<class E> BOOST_NORETURN void throw_exception( E const & e, boost::source_location const & loc )
- {
- throw_exception_assert_compatibility( e );
- throw wrapexcept<E>( e, loc );
- }
- #endif // defined( BOOST_EXCEPTION_DISABLE )
- #endif // !defined( BOOST_NO_EXCEPTIONS )
- } // namespace boost
- // BOOST_THROW_EXCEPTION
- #define BOOST_THROW_EXCEPTION(x) ::boost::throw_exception(x, BOOST_CURRENT_LOCATION)
- #endif // #ifndef BOOST_THROW_EXCEPTION_HPP_INCLUDED
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