boost/fusion/view/filter_view/filter_view_iterator.hpp
/*=============================================================================
Copyright (c) 2001-2011 Joel de Guzman
Copyright (c) 2018 Kohei Takahashi
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)
==============================================================================*/
#if !defined(FUSION_FILTER_VIEW_ITERATOR_05062005_0849)
#define FUSION_FILTER_VIEW_ITERATOR_05062005_0849
#include <boost/fusion/support/config.hpp>
#include <boost/fusion/iterator/mpl/convert_iterator.hpp>
#include <boost/fusion/iterator/value_of.hpp>
#include <boost/fusion/support/iterator_base.hpp>
#include <boost/fusion/algorithm/query/detail/find_if.hpp>
#include <boost/mpl/lambda.hpp>
#include <boost/mpl/quote.hpp>
#include <boost/mpl/bind.hpp>
#include <boost/mpl/placeholders.hpp>
#include <boost/fusion/view/filter_view/detail/deref_impl.hpp>
#include <boost/fusion/view/filter_view/detail/next_impl.hpp>
#include <boost/fusion/view/filter_view/detail/value_of_impl.hpp>
#include <boost/fusion/view/filter_view/detail/equal_to_impl.hpp>
#include <boost/fusion/view/filter_view/detail/deref_data_impl.hpp>
#include <boost/fusion/view/filter_view/detail/value_of_data_impl.hpp>
#include <boost/fusion/view/filter_view/detail/key_of_impl.hpp>
#ifdef _MSC_VER
# pragma warning(push)
# pragma warning(disable: 4512) // assignment operator could not be generated.
#endif
namespace boost { namespace fusion
{
struct filter_view_iterator_tag;
struct forward_traversal_tag;
template <typename Category, typename First, typename Last, typename Pred>
struct filter_iterator : iterator_base<filter_iterator<Category, First, Last, Pred> >
{
typedef convert_iterator<First> first_converter;
typedef typename first_converter::type first_iter;
typedef convert_iterator<Last> last_converter;
typedef typename last_converter::type last_iter;
typedef filter_view_iterator_tag fusion_tag;
typedef Category category;
typedef
detail::static_find_if<
first_iter
, last_iter
, mpl::bind1<
typename mpl::lambda<Pred>::type
, mpl::bind1<mpl::quote1<result_of::value_of>,mpl::_1>
>
>
filter;
typedef typename filter::type first_type;
typedef last_iter last_type;
typedef Pred pred_type;
BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
filter_iterator(First const& in_first)
: first(filter::iter_call(first_converter::call(in_first))) {}
first_type first;
};
}}
#ifdef _MSC_VER
# pragma warning(pop)
#endif
#ifdef BOOST_FUSION_WORKAROUND_FOR_LWG_2408
namespace std
{
template <typename Category, typename First, typename Last, typename Pred>
struct iterator_traits< ::boost::fusion::filter_iterator<Category, First, Last, Pred> >
{ };
}
#endif
#endif