/*============================================================================= | |
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_TRANSFORM_VIEW_07162005_1037) | |
#define FUSION_TRANSFORM_VIEW_07162005_1037 | |
#include <boost/static_assert.hpp> | |
#include <boost/fusion/support/detail/access.hpp> | |
#include <boost/fusion/support/is_view.hpp> | |
#include <boost/fusion/support/category_of.hpp> | |
#include <boost/fusion/view/transform_view/transform_view_iterator.hpp> | |
#include <boost/fusion/view/transform_view/transform_view_fwd.hpp> | |
#include <boost/fusion/view/transform_view/detail/begin_impl.hpp> | |
#include <boost/fusion/view/transform_view/detail/end_impl.hpp> | |
#include <boost/fusion/view/transform_view/detail/at_impl.hpp> | |
#include <boost/fusion/view/transform_view/detail/value_at_impl.hpp> | |
#include <boost/fusion/view/detail/strictest_traversal.hpp> | |
#include <boost/fusion/container/vector/vector10.hpp> | |
#include <boost/fusion/sequence/intrinsic/size.hpp> | |
#include <boost/fusion/support/sequence_base.hpp> | |
#include <boost/fusion/sequence/intrinsic/begin.hpp> | |
#include <boost/fusion/sequence/intrinsic/end.hpp> | |
#include <boost/fusion/sequence/intrinsic/size.hpp> | |
#include <boost/mpl/bool.hpp> | |
namespace boost { namespace fusion | |
{ | |
struct void_; | |
struct transform_view_tag; | |
struct transform_view2_tag; | |
struct fusion_sequence_tag; | |
// Binary Version | |
template <typename Sequence1, typename Sequence2, typename F> | |
struct transform_view : sequence_base<transform_view<Sequence1, Sequence2, F> > | |
{ | |
BOOST_STATIC_ASSERT(result_of::size<Sequence1>::value == result_of::size<Sequence2>::value); | |
typedef transform_view2_tag fusion_tag; | |
typedef fusion_sequence_tag tag; // this gets picked up by MPL | |
typedef mpl::true_ is_view; | |
typedef typename traits::category_of<Sequence1>::type category1; | |
typedef typename traits::category_of<Sequence2>::type category2; | |
typedef typename detail::strictest_traversal< | |
fusion::vector2<Sequence1, Sequence2> >::type category; | |
typedef typename result_of::begin<Sequence1>::type first1_type; | |
typedef typename result_of::begin<Sequence2>::type first2_type; | |
typedef typename result_of::end<Sequence1>::type last1_type; | |
typedef typename result_of::end<Sequence2>::type last2_type; | |
typedef typename result_of::size<Sequence1>::type size; | |
typedef Sequence1 sequence1_type; | |
typedef Sequence2 sequence2_type; | |
typedef F transform_type; | |
transform_view(Sequence1& in_seq1, Sequence2& in_seq2, F const& binop) | |
: f(binop) | |
, seq1(in_seq1) | |
, seq2(in_seq2) | |
{} | |
first1_type first1() const { return fusion::begin(seq1); } | |
first2_type first2() const { return fusion::begin(seq2); } | |
last1_type last1() const { return fusion::end(seq1); } | |
last2_type last2() const { return fusion::end(seq2); } | |
transform_type f; | |
typename mpl::if_<traits::is_view<Sequence1>, Sequence1, Sequence1&>::type seq1; | |
typename mpl::if_<traits::is_view<Sequence2>, Sequence2, Sequence2&>::type seq2; | |
private: | |
// silence MSVC warning C4512: assignment operator could not be generated | |
transform_view& operator= (transform_view const&); | |
}; | |
// Unary Version | |
template <typename Sequence, typename F> | |
#if defined(BOOST_NO_PARTIAL_SPECIALIZATION_IMPLICIT_DEFAULT_ARGS) | |
struct transform_view<Sequence, F, void_> : sequence_base<transform_view<Sequence, F, void_> > | |
#else | |
struct transform_view<Sequence, F> : sequence_base<transform_view<Sequence, F> > | |
#endif | |
{ | |
typedef transform_view_tag fusion_tag; | |
typedef fusion_sequence_tag tag; // this gets picked up by MPL | |
typedef mpl::true_ is_view; | |
typedef typename traits::category_of<Sequence>::type category; | |
typedef typename result_of::begin<Sequence>::type first_type; | |
typedef typename result_of::end<Sequence>::type last_type; | |
typedef typename result_of::size<Sequence>::type size; | |
typedef Sequence sequence_type; | |
typedef F transform_type; | |
transform_view(Sequence& in_seq, F const& in_f) | |
: seq(in_seq) | |
, f(in_f) | |
{} | |
first_type first() const { return fusion::begin(seq); } | |
last_type last() const { return fusion::end(seq); } | |
typename mpl::if_<traits::is_view<Sequence>, Sequence, Sequence&>::type seq; | |
transform_type f; | |
private: | |
// silence MSVC warning C4512: assignment operator could not be generated | |
transform_view& operator= (transform_view const&); | |
}; | |
}} | |
#endif | |