/Src/Dependencies/Boost/boost/mpl/aux_/contains_impl.hpp

 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: 2008-10-11 17:19:02 +1100 (Sat, 11 Oct 2008) $
16// $Revision: 49267 $
17
18#include <boost/mpl/contains_fwd.hpp>
19#include <boost/mpl/begin_end.hpp>
20#include <boost/mpl/find.hpp>
21#include <boost/mpl/not.hpp>
22#include <boost/mpl/aux_/traits_lambda_spec.hpp>
23#include <boost/mpl/aux_/config/forwarding.hpp>
24#include <boost/mpl/aux_/config/static_constant.hpp>
25
26#include <boost/type_traits/is_same.hpp>
27
28namespace boost { namespace mpl {
29
30template< typename Tag >
31struct 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
57BOOST_MPL_ALGORITM_TRAITS_LAMBDA_SPEC(2,contains_impl)
58
59}}
60
61#endif // BOOST_MPL_AUX_CONTAINS_IMPL_HPP_INCLUDED