aux_/range_c/size.hpp

0001
0002 #ifndef BOOST_MPL_AUX_RANGE_C_SIZE_HPP_INCLUDED
0003 #define BOOST_MPL_AUX_RANGE_C_SIZE_HPP_INCLUDED
0004
0005 // Copyright Aleksey Gurtovoy 2000-2004
0006 //
0007 // Distributed under the Boost Software License, Version 1.0.
0008 // (See accompanying file LICENSE_1_0.txt or copy at
0009 // http://www.boost.org/LICENSE_1_0.txt)
0010 //
0011 // See http://www.boost.org/libs/mpl for documentation.
0012
0013 // $Id$
0014 // $Date$
0015 // $Revision$
0016
0017 #include <boost/mpl/size_fwd.hpp>
0018 #include <boost/mpl/minus.hpp>
0019 #include <boost/mpl/aux_/range_c/tag.hpp>
0020
0021 namespace boost { namespace mpl {
0022
0023 template<>
0024 struct size_impl< aux::half_open_range_tag >
0025 {
0026     template< typename Range > struct apply
0027         : minus<
0028               typename Range::finish
0029             , typename Range::start
0030             >
0031     {
0032     };
0033 };
0034
0035 }}
0036
0037 #endif // BOOST_MPL_AUX_RANGE_C_SIZE_HPP_INCLUDED