1 /*============================================================================= 2 Copyright (c) 2007 Tobias Schwinger 3 4 Distributed under the Boost Software License, Version 1.0. (See accompanying 5 file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) 6 ==============================================================================*/ 7 8 #if !defined(BOOST_FUSION_REPETITIVE_VIEW_BEGIN_IMPL_HPP_INCLUDED) 9 #define BOOST_FUSION_REPETITIVE_VIEW_BEGIN_IMPL_HPP_INCLUDED 10 11 #include <boost/fusion/support/config.hpp> 12 #include <boost/fusion/sequence/intrinsic/begin.hpp> 13 #include <boost/fusion/view/repetitive_view/repetitive_view_fwd.hpp> 14 15 namespace boost { namespace fusion 16 { 17 struct repetitive_view_tag; 18 19 template <typename Sequence, typename Pos> 20 struct repetitive_view_iterator; 21 22 namespace extension 23 { 24 template<typename Tag> 25 struct begin_impl; 26 27 template<> 28 struct begin_impl<repetitive_view_tag> 29 { 30 template<typename View> 31 struct apply 32 { 33 typedef typename View::sequence_type sequence_type; 34 35 typedef repetitive_view_iterator<sequence_type, 36 typename result_of::begin<sequence_type>::type > type; 37 38 BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED callboost::fusion::extension::begin_impl::apply39 static type call(View const& v) 40 { 41 return type(v.seq); 42 } 43 }; 44 }; 45 46 } 47 48 }} 49 50 #endif 51 52