1 /*=============================================================================
2 Copyright (c) 2001-2011 Joel de Guzman
3 Copyright (c) 2011 Eric Niebler
5 Distributed under the Boost Software License, Version 1.0. (See accompanying
6 file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
7 ==============================================================================*/
8 #if !defined(BOOST_FUSION_SINGLE_VIEW_VALUE_OF_IMPL_05052005_0324)
9 #define BOOST_FUSION_SINGLE_VIEW_VALUE_OF_IMPL_05052005_0324
11 #include <boost/fusion/support/config.hpp>
12 #include <boost/mpl/int.hpp>
13 #include <boost/mpl/assert.hpp>
14 #include <boost/mpl/equal_to.hpp>
16 namespace boost { namespace fusion
18 struct single_view_iterator_tag;
22 template <typename Tag>
26 struct value_of_impl<single_view_iterator_tag>
28 template <typename Iterator>
31 BOOST_MPL_ASSERT((mpl::equal_to<typename Iterator::position, mpl::int_<0> >));
32 typedef typename Iterator::value_type type;