41 lines
962 B
C++
41 lines
962 B
C++
|
#ifndef BOOST_METAPARSE_V1_EXCEPT_HPP
|
||
|
|
#define BOOST_METAPARSE_V1_EXCEPT_HPP
|
||
|
|
|
||
|
|
// Copyright Abel Sinkovics (abel@sinkovics.hu) 2009 - 2011.
|
||
|
|
// 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)
|
||
|
|
|
||
|
|
#include <boost/metaparse/v1/is_error.hpp>
|
||
|
|
#include <boost/metaparse/v1/accept.hpp>
|
||
|
|
#include <boost/metaparse/v1/reject.hpp>
|
||
|
|
|
||
|
|
#include <boost/mpl/if.hpp>
|
||
|
|
|
||
|
|
namespace boost
|
||
|
|
{
|
||
|
|
namespace metaparse
|
||
|
|
{
|
||
|
|
namespace v1
|
||
|
|
{
|
||
|
|
template <class P, class Result, class ErrorMsg>
|
||
|
|
struct except
|
||
|
|
{
|
||
|
|
typedef except type;
|
||
|
|
|
||
|
|
template <class S, class Pos>
|
||
|
|
struct apply :
|
||
|
|
boost::mpl::if_<
|
||
|
|
is_error<typename P::template apply<S, Pos> >,
|
||
|
|
accept<Result, S, Pos>,
|
||
|
|
reject<ErrorMsg, Pos>
|
||
|
|
>
|
||
|
|
{};
|
||
|
|
};
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|