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/mpl/prior.hpp>
12 namespace boost { namespace fusion
14 struct single_view_iterator_tag;
16 template <typename Sequence, typename Pos>
17 struct single_view_iterator;
21 template <typename Tag>
25 struct prior_impl<single_view_iterator_tag>
27 template <typename Iterator>
30 typedef single_view_iterator<
31 typename Iterator::single_view_type,
32 typename mpl::prior<typename Iterator::position>::type>
36 call(Iterator const& i)