Chris@16: 
Chris@16: //          Copyright Oliver Kowalke 2009.
Chris@16: // Distributed under the Boost Software License, Version 1.0.
Chris@16: //    (See accompanying file LICENSE_1_0.txt or copy at
Chris@16: //          http://www.boost.org/LICENSE_1_0.txt)
Chris@16: 
Chris@16: #ifndef BOOST_COROUTINES_EXCEPTIONS_H
Chris@16: #define BOOST_COROUTINES_EXCEPTIONS_H
Chris@16: 
Chris@16: #include <stdexcept>
Chris@16: #include <string>
Chris@16: 
Chris@16: #include <boost/config.hpp>
Chris@16: #include <boost/detail/scoped_enum_emulation.hpp>
Chris@16: #include <boost/system/error_code.hpp>
Chris@16: #include <boost/system/system_error.hpp>
Chris@16: #include <boost/type_traits/integral_constant.hpp>
Chris@16: 
Chris@16: #include <boost/coroutine/detail/config.hpp>
Chris@16: 
Chris@16: #ifdef BOOST_HAS_ABI_HEADERS
Chris@16: #  include BOOST_ABI_PREFIX
Chris@16: #endif
Chris@16: 
Chris@16: namespace boost {
Chris@16: namespace coroutines {
Chris@16: namespace detail {
Chris@16: 
Chris@16: struct forced_unwind {};
Chris@16: 
Chris@16: }
Chris@16: 
Chris@16: BOOST_SCOPED_ENUM_DECLARE_BEGIN(coroutine_errc)
Chris@16: {
Chris@16:   no_data = 1
Chris@16: }
Chris@16: BOOST_SCOPED_ENUM_DECLARE_END(coroutine_errc)
Chris@16: 
Chris@16: BOOST_COROUTINES_DECL system::error_category const& coroutine_category() BOOST_NOEXCEPT;
Chris@16: 
Chris@16: }
Chris@16: 
Chris@16: namespace system {
Chris@16: 
Chris@16: template<>
Chris@16: struct is_error_code_enum< coroutines::coroutine_errc > : public true_type
Chris@16: {};
Chris@16: 
Chris@16: #ifdef BOOST_NO_CXX11_SCOPED_ENUMS
Chris@16: template<>
Chris@16: struct is_error_code_enum< coroutines::coroutine_errc::enum_type > : public true_type
Chris@16: {};
Chris@16: #endif
Chris@16: 
Chris@16: inline
Chris@16: error_code make_error_code( coroutines::coroutine_errc e) //BOOST_NOEXCEPT
Chris@16: {
Chris@16:     return error_code( underlying_cast< int >( e), coroutines::coroutine_category() );
Chris@16: }
Chris@16: 
Chris@16: inline
Chris@16: error_condition make_error_condition( coroutines::coroutine_errc e) //BOOST_NOEXCEPT
Chris@16: {
Chris@16:     return error_condition( underlying_cast< int >( e), coroutines::coroutine_category() );
Chris@16: }
Chris@16: 
Chris@16: }
Chris@16: 
Chris@16: namespace coroutines {
Chris@16: 
Chris@16: class coroutine_error : public std::logic_error
Chris@16: {
Chris@16: private:
Chris@16:     system::error_code  ec_;
Chris@16: 
Chris@16: public:
Chris@16:     coroutine_error( system::error_code ec) :
Chris@16:         logic_error( ec.message() ),
Chris@16:         ec_( ec)
Chris@16:     {}
Chris@16: 
Chris@16:     system::error_code const& code() const BOOST_NOEXCEPT
Chris@16:     { return ec_; }
Chris@16: 
Chris@16:     const char* what() const throw()
Chris@16:     { return code().message().c_str(); }
Chris@16: };
Chris@16: 
Chris@16: class invalid_result : public coroutine_error
Chris@16: {
Chris@16: public:
Chris@16:     invalid_result() :
Chris@16:         coroutine_error(
Chris@16:             system::make_error_code(
Chris@16:                 coroutine_errc::no_data) )
Chris@16:     {}
Chris@16: };
Chris@16: 
Chris@16: }}
Chris@16: 
Chris@16: #ifdef BOOST_HAS_ABI_HEADERS
Chris@16: #  include BOOST_ABI_SUFFIX
Chris@16: #endif
Chris@16: 
Chris@16: #endif // BOOST_COROUTINES_EXCEPTIONS_H