41 lines
961 B
C++
41 lines
961 B
C++
#ifndef BOOST_METAPARSE_V1_TRANSFORM_ERROR_HPP
|
|
#define BOOST_METAPARSE_V1_TRANSFORM_ERROR_HPP
|
|
|
|
// Copyright Abel Sinkovics (abel@sinkovics.hu) 2015.
|
|
// 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/mpl/eval_if.hpp>
|
|
|
|
namespace boost
|
|
{
|
|
namespace metaparse
|
|
{
|
|
namespace v1
|
|
{
|
|
template <class P, class F>
|
|
struct transform_error
|
|
{
|
|
template <class S, class Pos>
|
|
struct apply :
|
|
boost::mpl::eval_if<
|
|
typename is_error<typename P::template apply<S, Pos> >::type,
|
|
typename F::template apply<
|
|
typename P::template apply<S, Pos>::type
|
|
>,
|
|
typename P::template apply<S, Pos>
|
|
>
|
|
{};
|
|
|
|
typedef transform_error type;
|
|
};
|
|
}
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|