| /*============================================================================= |
| 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_PUSH_FRONT_07162005_0749) |
| #define FUSION_PUSH_FRONT_07162005_0749 |
| |
| #include <boost/fusion/support/detail/as_fusion_element.hpp> |
| #include <boost/fusion/view/joint_view/joint_view.hpp> |
| #include <boost/fusion/view/single_view/single_view.hpp> |
| |
| namespace boost { namespace fusion |
| { |
| namespace result_of |
| { |
| template <typename Sequence, typename T> |
| struct push_front |
| { |
| typedef fusion::single_view<typename detail::as_fusion_element<T>::type> single_view; |
| typedef joint_view<single_view const, Sequence> type; |
| }; |
| } |
| |
| template <typename Sequence, typename T> |
| inline typename result_of::push_front<Sequence const, T>::type |
| push_front(Sequence const& seq, T const& x) |
| { |
| typedef typename result_of::push_front<Sequence const, T> push_front; |
| typedef typename push_front::single_view single_view; |
| typedef typename push_front::type result; |
| single_view x_(x); |
| return result(x_, seq); |
| } |
| }} |
| |
| #endif |
| |