blob: 1447868a33e7ac588e9533fbd935b5b859849d17 (
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
41
42
43
44
45
46
47
48
|
/*=============================================================================
Copyright (c) 2005-2012 Joel de Guzman
Copyright (c) 2005-2006 Dan Marsden
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_DEQUE_BEGIN_IMPL_09122006_2034)
#define BOOST_FUSION_DEQUE_BEGIN_IMPL_09122006_2034
#include <boost/fusion/container/deque/deque_iterator.hpp>
#include <boost/mpl/equal_to.hpp>
#include <boost/mpl/if.hpp>
namespace boost { namespace fusion
{
struct deque_tag;
namespace extension
{
template<typename T>
struct begin_impl;
template<>
struct begin_impl<deque_tag>
{
template<typename Sequence>
struct apply
{
typedef typename
mpl::if_c<
(Sequence::next_down::value == Sequence::next_up::value)
, deque_iterator<Sequence, 0>
, deque_iterator<Sequence, (Sequence::next_down::value + 1)>
>::type
type;
static type call(Sequence& seq)
{
return type(seq);
}
};
};
}
}}
#endif
|
