#ifndef BOOST_MPL_AUX_CONTAINS_IMPL_HPP_INCLUDED | |
#define BOOST_MPL_AUX_CONTAINS_IMPL_HPP_INCLUDED | |
// Copyright Eric Friedman 2002 | |
// Copyright Aleksey Gurtovoy 2004 | |
// | |
// Distributed under the Boost Software License, Version 1.0. | |
// (See accompanying file LICENSE_1_0.txt or copy at | |
// http://www.boost.org/LICENSE_1_0.txt) | |
// | |
// See http://www.boost.org/libs/mpl for documentation. | |
// $Id: contains_impl.hpp 49267 2008-10-11 06:19:02Z agurtovoy $ | |
// $Date: 2008-10-11 02:19:02 -0400 (Sat, 11 Oct 2008) $ | |
// $Revision: 49267 $ | |
#include <boost/mpl/contains_fwd.hpp> | |
#include <boost/mpl/begin_end.hpp> | |
#include <boost/mpl/find.hpp> | |
#include <boost/mpl/not.hpp> | |
#include <boost/mpl/aux_/traits_lambda_spec.hpp> | |
#include <boost/mpl/aux_/config/forwarding.hpp> | |
#include <boost/mpl/aux_/config/static_constant.hpp> | |
#include <boost/type_traits/is_same.hpp> | |
namespace boost { namespace mpl { | |
template< typename Tag > | |
struct contains_impl | |
{ | |
template< typename Sequence, typename T > struct apply | |
#if !defined(BOOST_MPL_CFG_NO_NESTED_FORWARDING) | |
: not_< is_same< | |
typename find<Sequence,T>::type | |
, typename end<Sequence>::type | |
> > | |
{ | |
#else | |
{ | |
typedef not_< is_same< | |
typename find<Sequence,T>::type | |
, typename end<Sequence>::type | |
> > type; | |
BOOST_STATIC_CONSTANT(bool, value = | |
(not_< is_same< | |
typename find<Sequence,T>::type | |
, typename end<Sequence>::type | |
> >::value) | |
); | |
#endif | |
}; | |
}; | |
BOOST_MPL_ALGORITM_TRAITS_LAMBDA_SPEC(2,contains_impl) | |
}} | |
#endif // BOOST_MPL_AUX_CONTAINS_IMPL_HPP_INCLUDED |