/*============================================================================= | |
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_BACK_09162005_0350) | |
#define FUSION_BACK_09162005_0350 | |
#include <boost/fusion/sequence/intrinsic/end.hpp> | |
#include <boost/fusion/iterator/prior.hpp> | |
#include <boost/fusion/iterator/deref.hpp> | |
#include <boost/mpl/bool.hpp> | |
namespace boost { namespace fusion | |
{ | |
struct fusion_sequence_tag; | |
namespace result_of | |
{ | |
template <typename Sequence> | |
struct back | |
: result_of::deref<typename result_of::prior<typename result_of::end<Sequence>::type>::type> | |
{}; | |
} | |
template <typename Sequence> | |
inline typename result_of::back<Sequence>::type | |
back(Sequence& seq) | |
{ | |
return *fusion::prior(fusion::end(seq)); | |
} | |
template <typename Sequence> | |
inline typename result_of::back<Sequence const>::type | |
back(Sequence const& seq) | |
{ | |
return *fusion::prior(fusion::end(seq)); | |
} | |
}} | |
#endif |