1// class template tuple -*- C++ -*-
2
3// Copyright (C) 2004, 2005 Free Software Foundation, Inc.
4//
5// This file is part of the GNU ISO C++ Library.  This library is free
6// software; you can redistribute it and/or modify it under the
7// terms of the GNU General Public License as published by the
8// Free Software Foundation; either version 2, or (at your option)
9// any later version.
10
11// This library is distributed in the hope that it will be useful,
12// but WITHOUT ANY WARRANTY; without even the implied warranty of
13// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14// GNU General Public License for more details.
15
16// You should have received a copy of the GNU General Public License along
17// with this library; see the file COPYING.  If not, write to the Free
18// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
19// USA.
20
21// As a special exception, you may use this file as part of a free software
22// library without restriction.  Specifically, if other files instantiate
23// templates or use macros or inline functions from this file, or you compile
24// this file and link it with other files to produce an executable, this
25// file does not by itself cause the resulting executable to be covered by
26// the GNU General Public License.  This exception does not however
27// invalidate any other reasons why the executable file might be covered by
28// the GNU General Public License.
29
30/** @file tr1/tuple_defs.h
31 *  This is an internal header file, included by other library headers.
32 *  You should not attempt to use it directly.
33 */
34
35#ifndef _GLIBCXX_REPEAT_HEADER
36#  define _GLIBCXX_REPEAT_HEADER "tuple_defs.h"
37#  include "repeat.h"
38#  undef _GLIBCXX_REPEAT_HEADER
39#endif
40
41#ifdef _GLIBCXX_LAST_INCLUDE
42// Chris Jefferson <chris@bubblescope.net>
43   template<_GLIBCXX_TEMPLATE_PARAMS_NULL_CLASS> class tuple;
44
45   // Returns a const reference to the ith element of a tuple.
46   // Any const or non-const ref elements are returned with their original type.
47   template<int __i, _GLIBCXX_TEMPLATE_PARAMS>
48   typename __add_ref<typename tuple_element<__i, tuple<_GLIBCXX_TEMPLATE_ARGS> >::type>::type
49   get(tuple<_GLIBCXX_TEMPLATE_ARGS>& __t)
50   {
51     return __get_helper<__i, tuple<_GLIBCXX_TEMPLATE_ARGS> >::get_value(__t);
52   }
53
54   template<int __i, _GLIBCXX_TEMPLATE_PARAMS>
55   typename __add_c_ref<typename tuple_element<__i, tuple<_GLIBCXX_TEMPLATE_ARGS> >::type>::type
56   get(const tuple<_GLIBCXX_TEMPLATE_ARGS>& __t)
57   {
58     return __get_helper<__i, tuple<_GLIBCXX_TEMPLATE_ARGS> >::get_value(__t);
59   }
60
61 template<_GLIBCXX_TEMPLATE_PARAMS, _GLIBCXX_TEMPLATE_PARAMS_U>
62 bool
63 operator==(const tuple<_GLIBCXX_TEMPLATE_ARGS>& __t,
64            const tuple<_GLIBCXX_TEMPLATE_ARGS_U>& __u)
65 {
66   typedef tuple<_GLIBCXX_TEMPLATE_ARGS> _Tp;
67   typedef tuple<_GLIBCXX_TEMPLATE_ARGS_U> _Up;
68   return __tuple_compare<tuple_size<_Tp>::value - tuple_size<_Tp>::value, 0,
69                          tuple_size<_Tp>::value, _Tp, _Up>::__eq(__t, __u);
70 }
71
72 template<_GLIBCXX_TEMPLATE_PARAMS, _GLIBCXX_TEMPLATE_PARAMS_U>
73 bool
74 operator<(const tuple<_GLIBCXX_TEMPLATE_ARGS>& __t,
75           const tuple<_GLIBCXX_TEMPLATE_ARGS_U>& __u)
76 {
77   typedef tuple<_GLIBCXX_TEMPLATE_ARGS> _Tp;
78   typedef tuple<_GLIBCXX_TEMPLATE_ARGS_U> _Up;
79   return __tuple_compare<tuple_size<_Tp>::value - tuple_size<_Tp>::value, 0,
80                          tuple_size<_Tp>::value, _Tp, _Up>::__less(__t, __u);
81 }
82
83 template<_GLIBCXX_TEMPLATE_PARAMS, _GLIBCXX_TEMPLATE_PARAMS_U>
84 bool
85 operator!=(const tuple<_GLIBCXX_TEMPLATE_ARGS>& __t,
86            const tuple<_GLIBCXX_TEMPLATE_ARGS_U>& __u)
87 { return !(__t == __u); }
88
89 template<_GLIBCXX_TEMPLATE_PARAMS, _GLIBCXX_TEMPLATE_PARAMS_U>
90 bool
91 operator>(const tuple<_GLIBCXX_TEMPLATE_ARGS>& __t,
92           const tuple<_GLIBCXX_TEMPLATE_ARGS_U>& __u)
93 { return __u < __t; }
94
95 template<_GLIBCXX_TEMPLATE_PARAMS, _GLIBCXX_TEMPLATE_PARAMS_U>
96 bool
97 operator<=(const tuple<_GLIBCXX_TEMPLATE_ARGS>& __t,
98            const tuple<_GLIBCXX_TEMPLATE_ARGS_U>& __u)
99 { return !(__u < __t); }
100
101 template<_GLIBCXX_TEMPLATE_PARAMS, _GLIBCXX_TEMPLATE_PARAMS_U>
102 bool
103 operator>=(const tuple<_GLIBCXX_TEMPLATE_ARGS>& __t,
104            const tuple<_GLIBCXX_TEMPLATE_ARGS_U>& __u)
105 { return !(__t < __u); }
106
107 template<_GLIBCXX_TEMPLATE_PARAMS_NULL_CLASS>
108   struct __stripped_tuple_type
109   {
110     typedef tuple<_GLIBCXX_TEMPLATE_ARGS_STRIPPED>      __type;
111   };
112
113#endif
114
115