You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and dots ('.'), can be up to 35 characters long. Letters must be lowercase.
61 lines
1.6 KiB
61 lines
1.6 KiB
|
|
#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
|
|
|