Chris@16: 
Chris@16: #ifndef BOOST_MPL_AUX_FOLD_OP_HPP_INCLUDED
Chris@16: #define BOOST_MPL_AUX_FOLD_OP_HPP_INCLUDED
Chris@16: 
Chris@16: // Copyright Aleksey Gurtovoy 2001-2004
Chris@16: //
Chris@16: // Distributed under the Boost Software License, Version 1.0. 
Chris@16: // (See accompanying file LICENSE_1_0.txt or copy at 
Chris@16: // http://www.boost.org/LICENSE_1_0.txt)
Chris@16: //
Chris@16: // See http://www.boost.org/libs/mpl for documentation.
Chris@16: 
Chris@101: // $Id$
Chris@101: // $Date$
Chris@101: // $Revision$
Chris@16: 
Chris@16: #include <boost/mpl/apply.hpp>
Chris@16: 
Chris@16: namespace boost { namespace mpl { namespace aux {
Chris@16: 
Chris@16: // hand-written version is more efficient than bind/lambda expression
Chris@16: template< typename Op >
Chris@16: struct fold_op
Chris@16: {
Chris@16:     template< typename T1, typename T2 > struct apply
Chris@16:     {
Chris@16:         typedef typename apply2<
Chris@16:               Op
Chris@16:             , T1
Chris@16:             , typename T2::type
Chris@16:             >::type type;
Chris@16:     };
Chris@16: };
Chris@16: 
Chris@16: }}}
Chris@16: 
Chris@16: #endif // BOOST_MPL_AUX_FOLD_OP_HPP_INCLUDED