nview/detail/equal_to_impl.hpp

0001 /*=============================================================================
0002     Copyright (c) 2009 Hartmut Kaiser
0003
0004     Distributed under the Boost Software License, Version 1.0. (See accompanying
0005     file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
0006 ==============================================================================*/
0007
0008 #if !defined(BOOST_FUSION_NVIEW_ITERATOR_SEP_24_2009_0329PM)
0009 #define BOOST_FUSION_NVIEW_ITERATOR_SEP_24_2009_0329PM
0010
0011 #include <boost/fusion/support/config.hpp>
0012 #include <boost/fusion/iterator/equal_to.hpp>
0013
0014 namespace boost { namespace fusion
0015 {
0016     struct nview_iterator_tag;
0017
0018     namespace extension
0019     {
0020         template<typename Tag>
0021         struct equal_to_impl;
0022
0023         template<>
0024         struct equal_to_impl<nview_iterator_tag>
0025         {
0026             template<typename It1, typename It2>
0027             struct apply
0028               : result_of::equal_to<typename It1::first_type, typename It2::first_type>
0029             {};
0030         };
0031     }
0032 }}
0033
0034 #endif