1 // 2004-09-23 Chris Jefferson <chris@bubblescope.net>
2
3 // Copyright (C) 2004-2018 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 3, 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 COPYING3. If not see
18 // <http://www.gnu.org/licenses/>.
19
20 // { dg-options "-std=c++98" }
21
22 // tr1 additions to pair
23
24 #include <tr1/utility>
25 #include <testsuite_hooks.h>
26
27 using namespace std::tr1;
28 using std::pair;
29
30 struct blank_class
31 { };
32
33 int
main()34 main()
35 {
36 typedef pair<int,int> test_pair_type;
37 VERIFY(tuple_size<test_pair_type>::value == 2);
38 // Test if tuple_element::type returns the correct type
39 blank_class blank;
40 tuple_element<0, pair<blank_class, int> >::type
41 blank2 __attribute__((unused)) = blank;
42 tuple_element<1, pair<int ,blank_class> >::type
43 blank3 __attribute__((unused)) = blank;
44 pair<int,int> test_pair(1, 2);
45 VERIFY(get<0>(test_pair) == 1);
46 VERIFY(get<1>(test_pair) == 2);
47 get<0>(test_pair) = 3;
48 get<1>(test_pair) = 4;
49 VERIFY(get<0>(test_pair) == 3);
50 VERIFY(get<1>(test_pair) == 4);
51
52 const pair<int,int> test_pair2(1,2);
53 VERIFY(get<0>(test_pair2) == 1);
54 VERIFY(get<1>(test_pair2) == 2);
55 }
56
57