| Jeff Thompson | a28eed8 | 2013-08-22 16:21:10 -0700 | [diff] [blame] | 1 | |
| 2 | #ifndef BOOST_MPL_AUX_CONTAINS_IMPL_HPP_INCLUDED |
| 3 | #define BOOST_MPL_AUX_CONTAINS_IMPL_HPP_INCLUDED |
| 4 | |
| 5 | // Copyright Eric Friedman 2002 |
| 6 | // Copyright Aleksey Gurtovoy 2004 |
| 7 | // |
| 8 | // Distributed under the Boost Software License, Version 1.0. |
| 9 | // (See accompanying file LICENSE_1_0.txt or copy at |
| 10 | // http://www.boost.org/LICENSE_1_0.txt) |
| 11 | // |
| 12 | // See http://www.boost.org/libs/mpl for documentation. |
| 13 | |
| 14 | // $Id: contains_impl.hpp 49267 2008-10-11 06:19:02Z agurtovoy $ |
| 15 | // $Date: 2008-10-10 23:19:02 -0700 (Fri, 10 Oct 2008) $ |
| 16 | // $Revision: 49267 $ |
| 17 | |
| 18 | #include <ndnboost/mpl/contains_fwd.hpp> |
| 19 | #include <ndnboost/mpl/begin_end.hpp> |
| 20 | #include <ndnboost/mpl/find.hpp> |
| 21 | #include <ndnboost/mpl/not.hpp> |
| 22 | #include <ndnboost/mpl/aux_/traits_lambda_spec.hpp> |
| 23 | #include <ndnboost/mpl/aux_/config/forwarding.hpp> |
| 24 | #include <ndnboost/mpl/aux_/config/static_constant.hpp> |
| 25 | |
| 26 | #include <ndnboost/type_traits/is_same.hpp> |
| 27 | |
| 28 | namespace ndnboost { namespace mpl { |
| 29 | |
| 30 | template< typename Tag > |
| 31 | struct contains_impl |
| 32 | { |
| 33 | template< typename Sequence, typename T > struct apply |
| 34 | #if !defined(BOOST_MPL_CFG_NO_NESTED_FORWARDING) |
| 35 | : not_< is_same< |
| 36 | typename find<Sequence,T>::type |
| 37 | , typename end<Sequence>::type |
| 38 | > > |
| 39 | { |
| 40 | #else |
| 41 | { |
| 42 | typedef not_< is_same< |
| 43 | typename find<Sequence,T>::type |
| 44 | , typename end<Sequence>::type |
| 45 | > > type; |
| 46 | |
| 47 | BOOST_STATIC_CONSTANT(bool, value = |
| 48 | (not_< is_same< |
| 49 | typename find<Sequence,T>::type |
| 50 | , typename end<Sequence>::type |
| 51 | > >::value) |
| 52 | ); |
| 53 | #endif |
| 54 | }; |
| 55 | }; |
| 56 | |
| 57 | BOOST_MPL_ALGORITM_TRAITS_LAMBDA_SPEC(2,contains_impl) |
| 58 | |
| 59 | }} |
| 60 | |
| 61 | #endif // BOOST_MPL_AUX_CONTAINS_IMPL_HPP_INCLUDED |