/*=============================================================================
Copyright (c) 2003 Joel de Guzman
Copyright (c) 2004 Peder Holt
Use, modification and distribution is subject to 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)
==============================================================================*/
#if !defined(FUSION_ITERATOR_EQUAL_TO_HPP)
#define FUSION_ITERATOR_EQUAL_TO_HPP
#include <boost/spirit/fusion/detail/config.hpp>
#include <boost/spirit/fusion/iterator/as_fusion_iterator.hpp>
#include <boost/type_traits/is_same.hpp>
#include <boost/type_traits/add_const.hpp>
namespace boost { namespace fusion
{
namespace meta
{
template <typename Tag>
struct equal_to_impl
{
template <typename I1, typename I2>
struct apply
{
typedef typename
is_same<
typename add_const<I1>::type
, typename add_const<I2>::type
>::type
type;
BOOST_STATIC_CONSTANT(bool, value = FUSION_GET_VALUE(type));
};
};
template <typename I1, typename I2>
struct equal_to
: detail::bool_base<
typename equal_to_impl<typename as_fusion_iterator<I1>::type::tag>::
template apply<
typename as_fusion_iterator<I1>::type
, typename as_fusion_iterator<I2>::type
>::type
> {};
}
}}
#endif