mpl/aux_/has_apply.hpp

0001
0002 #ifndef BOOST_MPL_AUX_HAS_APPLY_HPP_INCLUDED
0003 #define BOOST_MPL_AUX_HAS_APPLY_HPP_INCLUDED
0004
0005 // Copyright Aleksey Gurtovoy 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/has_xxx.hpp>
0018 #include <boost/mpl/aux_/config/has_apply.hpp>
0019
0020 namespace boost { namespace mpl { namespace aux {
0021 #if !defined(BOOST_MPL_CFG_NO_HAS_APPLY)
0022 BOOST_MPL_HAS_XXX_TRAIT_NAMED_DEF(has_apply, apply, false)
0023 #else
0024 template< typename T, typename fallback_ = false_ >
0025 struct has_apply
0026     : fallback_
0027 {
0028 };
0029 #endif
0030 }}}
0031
0032 #endif // BOOST_MPL_AUX_HAS_APPLY_HPP_INCLUDED