diff options
Diffstat (limited to 'src/third_party/boost-1.60.0/boost/mpl/aux_/back_impl.hpp')
-rw-r--r-- | src/third_party/boost-1.60.0/boost/mpl/aux_/back_impl.hpp | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/src/third_party/boost-1.60.0/boost/mpl/aux_/back_impl.hpp b/src/third_party/boost-1.60.0/boost/mpl/aux_/back_impl.hpp new file mode 100644 index 00000000000..a3c7248df2a --- /dev/null +++ b/src/third_party/boost-1.60.0/boost/mpl/aux_/back_impl.hpp @@ -0,0 +1,43 @@ + +#ifndef BOOST_MPL_AUX_BACK_IMPL_HPP_INCLUDED +#define BOOST_MPL_AUX_BACK_IMPL_HPP_INCLUDED + +// Copyright Aleksey Gurtovoy 2000-2004 +// +// 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) +// +// See http://www.boost.org/libs/mpl for documentation. + +// $Id$ +// $Date$ +// $Revision$ + +#include <boost/mpl/begin_end.hpp> +#include <boost/mpl/next_prior.hpp> +#include <boost/mpl/deref.hpp> +#include <boost/mpl/aux_/traits_lambda_spec.hpp> + +namespace boost { namespace mpl { + +// default implementation, requires at least bi-directional iterators; +// conrete sequences might override it by specializing either the +// 'back_impl' or the primary 'back' template + +template< typename Tag > +struct back_impl +{ + template< typename Sequence > struct apply + { + typedef typename end<Sequence>::type end_; + typedef typename prior<end_>::type last_; + typedef typename deref<last_>::type type; + }; +}; + +BOOST_MPL_ALGORITM_TRAITS_LAMBDA_SPEC(1, back_impl) + +}} + +#endif // BOOST_MPL_AUX_BACK_IMPL_HPP_INCLUDED |