williamr@2: 
williamr@2: #ifndef BOOST_MPL_AUX_NUMERIC_CAST_HPP_INCLUDED
williamr@2: #define BOOST_MPL_AUX_NUMERIC_CAST_HPP_INCLUDED
williamr@2: 
williamr@2: // Copyright Aleksey Gurtovoy 2003-2004
williamr@2: //
williamr@2: // Distributed under the Boost Software License, Version 1.0. 
williamr@2: // (See accompanying file LICENSE_1_0.txt or copy at 
williamr@2: // http://www.boost.org/LICENSE_1_0.txt)
williamr@2: //
williamr@2: // See http://www.boost.org/libs/mpl for documentation.
williamr@2: 
williamr@2: // $Source: /cvsroot/boost/boost/boost/mpl/aux_/numeric_cast_utils.hpp,v $
williamr@2: // $Date: 2004/11/28 01:39:23 $
williamr@2: // $Revision: 1.2 $
williamr@2: 
williamr@2: #include <boost/mpl/numeric_cast.hpp>
williamr@2: #include <boost/mpl/apply_wrap.hpp>
williamr@2: #include <boost/mpl/aux_/config/forwarding.hpp>
williamr@2: 
williamr@2: namespace boost { namespace mpl { namespace aux {
williamr@2: 
williamr@2: template<
williamr@2:       typename F
williamr@2:     , typename Tag1
williamr@2:     , typename Tag2
williamr@2:     >
williamr@2: struct cast1st_impl
williamr@2: {
williamr@2:     template< typename N1, typename N2 > struct apply
williamr@2: #if !defined(BOOST_MPL_CFG_NO_NESTED_FORWARDING)
williamr@2:         : apply_wrap2< 
williamr@2:               F
williamr@2:             , typename apply_wrap1< BOOST_MPL_AUX_NUMERIC_CAST<Tag1,Tag2>,N1 >::type
williamr@2:             , N2
williamr@2:             >
williamr@2:     {
williamr@2: #else
williamr@2:     {
williamr@2:     typedef typename apply_wrap2< 
williamr@2:               F
williamr@2:             , typename apply_wrap1< BOOST_MPL_AUX_NUMERIC_CAST<Tag1,Tag2>,N1 >::type
williamr@2:             , N2
williamr@2:             >::type type;
williamr@2: #endif
williamr@2:     };
williamr@2: };
williamr@2: 
williamr@2: template<
williamr@2:       typename F
williamr@2:     , typename Tag1
williamr@2:     , typename Tag2
williamr@2:     >
williamr@2: struct cast2nd_impl
williamr@2: {
williamr@2:     template< typename N1, typename N2 > struct apply
williamr@2: #if !defined(BOOST_MPL_CFG_NO_NESTED_FORWARDING)
williamr@2:         : apply_wrap2< 
williamr@2:               F
williamr@2:             , N1
williamr@2:             , typename apply_wrap1< BOOST_MPL_AUX_NUMERIC_CAST<Tag2,Tag1>,N2 >::type
williamr@2:             >
williamr@2:     {
williamr@2: #else
williamr@2:     {
williamr@2:         typedef typename apply_wrap2< 
williamr@2:               F
williamr@2:             , N1
williamr@2:             , typename apply_wrap1< BOOST_MPL_AUX_NUMERIC_CAST<Tag2,Tag1>,N2 >::type
williamr@2:             >::type type;
williamr@2: #endif
williamr@2:     };
williamr@2: };
williamr@2: 
williamr@2: }}}
williamr@2: 
williamr@2: #endif // BOOST_MPL_AUX_NUMERIC_CAST_HPP_INCLUDED