summaryrefslogtreecommitdiff
path: root/boost/fusion/container/map/detail/begin_impl.hpp
blob: 65b39d1f0b4c1a598d408b5a36e9584a3ed67bcc (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
/*=============================================================================
    Copyright (c) 2005-2013 Joel de Guzman

    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)
==============================================================================*/
#if !defined(BOOST_FUSION_MAP_BEGIN_IMPL_02042013_0857)
#define BOOST_FUSION_MAP_BEGIN_IMPL_02042013_0857

#include <boost/fusion/support/config.hpp>
#include <boost/fusion/container/map/map_iterator.hpp>

namespace boost { namespace fusion
{
    struct map_tag;

    namespace extension
    {
        template<typename T>
        struct begin_impl;

        template<>
        struct begin_impl<map_tag>
        {
            template<typename Sequence>
            struct apply
            {
                typedef map_iterator<Sequence, 0> type;

                BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
                static type call(Sequence& seq)
                {
                    return type(seq);
                }
            };
        };
    }
}}

#endif