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// Copyright Oliver Kowalke 2009.
// 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)
#ifndef BOOST_COROUTINES_EXCEPTIONS_H
#define BOOST_COROUTINES_EXCEPTIONS_H
#include <stdexcept>
#include <string>
#include <boost/config.hpp>
#include <boost/detail/scoped_enum_emulation.hpp>
#include <boost/system/error_code.hpp>
#include <boost/system/system_error.hpp>
#include <boost/type_traits/integral_constant.hpp>
#include <boost/coroutine/detail/config.hpp>
#ifdef BOOST_HAS_ABI_HEADERS
# include BOOST_ABI_PREFIX
#endif
namespace boost {
namespace coroutines {
namespace detail {
struct forced_unwind {};
}
BOOST_SCOPED_ENUM_DECLARE_BEGIN(coroutine_errc)
{
no_data = 1
}
BOOST_SCOPED_ENUM_DECLARE_END(coroutine_errc)
BOOST_COROUTINES_DECL system::error_category const& coroutine_category() BOOST_NOEXCEPT;
}
namespace system {
template<>
struct is_error_code_enum< coroutines::coroutine_errc > : public true_type
{};
#ifdef BOOST_NO_CXX11_SCOPED_ENUMS
template<>
struct is_error_code_enum< coroutines::coroutine_errc::enum_type > : public true_type
{};
#endif
inline
error_code make_error_code( coroutines::coroutine_errc e) //BOOST_NOEXCEPT
{
return error_code( underlying_cast< int >( e), coroutines::coroutine_category() );
}
inline
error_condition make_error_condition( coroutines::coroutine_errc e) //BOOST_NOEXCEPT
{
return error_condition( underlying_cast< int >( e), coroutines::coroutine_category() );
}
}
namespace coroutines {
class coroutine_error : public std::logic_error
{
private:
system::error_code ec_;
public:
coroutine_error( system::error_code ec) :
logic_error( ec.message() ),
ec_( ec)
{}
system::error_code const& code() const BOOST_NOEXCEPT
{ return ec_; }
const char* what() const throw()
{ return code().message().c_str(); }
};
class invalid_result : public coroutine_error
{
public:
invalid_result() :
coroutine_error(
system::make_error_code(
coroutine_errc::no_data) )
{}
};
}}
#ifdef BOOST_HAS_ABI_HEADERS
# include BOOST_ABI_SUFFIX
#endif
#endif // BOOST_COROUTINES_EXCEPTIONS_H
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