/*============================================================================= | |
Copyright (c) 2001-2006 Joel de Guzman | |
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/iterator/mpl/convert_iterator.hpp> | |
#include <boost/fusion/adapted/mpl/mpl_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> | |
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; | |
filter_iterator(First const& in_first) | |
: first(filter::call(first_converter::call(in_first))) {} | |
first_type first; | |
private: | |
// silence MSVC warning C4512: assignment operator could not be generated | |
filter_iterator& operator= (filter_iterator const&); | |
}; | |
}} | |
#endif | |