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1 /*=============================================================================
2     Copyright (c) 2005-2012 Joel de Guzman
3     Copyright (c) 2005-2006 Dan Marsden
4
5     Distributed under the Boost Software License, Version 1.0. (See accompanying
6     file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
7 ==============================================================================*/
8 #if !defined(BOOST_FUSION_DEQUE_BEGIN_IMPL_09122006_2034)
9 #define BOOST_FUSION_DEQUE_BEGIN_IMPL_09122006_2034
10
11 #include <boost/fusion/support/config.hpp>
12 #include <boost/fusion/container/deque/deque_iterator.hpp>
13
14 namespace boost { namespace fusion
15 {
16     struct deque_tag;
17
18     namespace extension
19     {
20         template<typename T>
21         struct begin_impl;
22
23         template<>
24         struct begin_impl<deque_tag>
25         {
26             template<typename Sequence>
27             struct apply
28             {
29                 typedef
30                     deque_iterator<Sequence, (Sequence::next_down::value + 1)>
31                 type;
32
33                 BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
34                 static type call(Sequence& seq)
35                 {
36                     return type(seq);
37                 }
38             };
39         };
40     }
41 }}
42
43 #endif