1 /*=============================================================================
2 Copyright (c) 2011 Eric Niebler
4 Distributed under the Boost Software License, Version 1.0. (See accompanying
5 file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
6 ==============================================================================*/
7 #if !defined(BOOST_FUSION_SINGLE_VIEW_PRIOR_IMPL_JUL_07_2011_1348PM)
8 #define BOOST_FUSION_SINGLE_VIEW_PRIOR_IMPL_JUL_07_2011_1348PM
10 #include <boost/fusion/support/config.hpp>
11 #include <boost/mpl/prior.hpp>
13 namespace boost { namespace fusion
15 struct single_view_iterator_tag;
17 template <typename Sequence, typename Pos>
18 struct single_view_iterator;
22 template <typename Tag>
26 struct prior_impl<single_view_iterator_tag>
28 template <typename Iterator>
31 typedef single_view_iterator<
32 typename Iterator::single_view_type,
33 typename mpl::prior<typename Iterator::position>::type>
36 BOOST_FUSION_GPU_ENABLED
38 call(Iterator const& i)