1// (C) Copyright John Maddock 2005.
2// Use, modification and distribution are subject to the
3// Boost Software License, Version 1.0. (See accompanying file
4// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
5
6#ifndef BOOST_TR1_TUPLE_HPP_INCLUDED
7# define BOOST_TR1_TUPLE_HPP_INCLUDED
8# include <boost/tr1/detail/config.hpp>
9
10#ifdef BOOST_HAS_TR1_TUPLE
11
12# if defined(BOOST_HAS_INCLUDE_NEXT) && !defined(BOOST_TR1_DISABLE_INCLUDE_NEXT)
13# include_next BOOST_TR1_HEADER(tuple)
14# else
15# include <boost/tr1/detail/config_all.hpp>
16# include BOOST_TR1_STD_HEADER(BOOST_TR1_PATH(tuple))
17# endif
18
19#else
20
21#if defined(BOOST_TR1_USE_OLD_TUPLE)
22
23#include <boost/tuple/tuple.hpp>
24#include <boost/tuple/tuple_comparison.hpp>
25#include <boost/type_traits/integral_constant.hpp>
26
27namespace std{ namespace tr1{
28
29using ::boost::tuple;
30
31// [6.1.3.2] Tuple creation functions
32using ::boost::tuples::ignore;
33using ::boost::make_tuple;
34using ::boost::tie;
35
36// [6.1.3.3] Tuple helper classes
37template <class T>
38struct tuple_size
39 : public ::boost::integral_constant
40 < ::std::size_t, ::boost::tuples::length<T>::value>
41{};
42
43template < int I, class T>
44struct tuple_element
45{
46 typedef typename boost::tuples::element<I,T>::type type;
47};
48
49#if !BOOST_WORKAROUND(__BORLANDC__, < 0x0582)
50// [6.1.3.4] Element access
51using ::boost::get;
52#endif
53
54} } // namespaces
55
56#else
57
58#include <boost/fusion/include/tuple.hpp>
59#include <boost/fusion/include/std_pair.hpp>
60
61namespace std{ namespace tr1{
62
63using ::boost::fusion::tuple;
64
65// [6.1.3.2] Tuple creation functions
66using ::boost::fusion::ignore;
67using ::boost::fusion::make_tuple;
68using ::boost::fusion::tie;
69using ::boost::fusion::get;
70
71// [6.1.3.3] Tuple helper classes
72using ::boost::fusion::tuple_size;
73using ::boost::fusion::tuple_element;
74
75}}
76
77#endif
78
79#endif
80
81#endif
82
83

source code of boost/boost/tr1/tuple.hpp