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43 lines
1.3 KiB
43 lines
1.3 KiB
/*============================================================================= |
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Copyright (c) 2001-2011 Joel de Guzman |
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Distributed under the Boost Software License, Version 1.0. (See accompanying |
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file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
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==============================================================================*/ |
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#if !defined(FUSION_BACK_09162005_0350) |
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#define FUSION_BACK_09162005_0350 |
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#include <boost/fusion/sequence/intrinsic_fwd.hpp> |
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#include <boost/fusion/sequence/intrinsic/end.hpp> |
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#include <boost/fusion/iterator/prior.hpp> |
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#include <boost/fusion/iterator/deref.hpp> |
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#include <boost/mpl/bool.hpp> |
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namespace boost { namespace fusion |
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{ |
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struct fusion_sequence_tag; |
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namespace result_of |
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{ |
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template <typename Sequence> |
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struct back |
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: result_of::deref<typename result_of::prior<typename result_of::end<Sequence>::type>::type> |
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{}; |
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} |
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template <typename Sequence> |
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inline typename result_of::back<Sequence>::type |
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back(Sequence& seq) |
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{ |
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return *fusion::prior(fusion::end(seq)); |
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} |
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template <typename Sequence> |
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inline typename result_of::back<Sequence const>::type |
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back(Sequence const& seq) |
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{ |
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return *fusion::prior(fusion::end(seq)); |
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} |
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}} |
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#endif
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