1 // { dg-do compile { target c++11 } }
2
3 // Copyright (C) 2007-2018 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 // Tuple
21
22 #include <tuple>
23 #include <testsuite_hooks.h>
24
25 using namespace std;
26
27 int
main()28 main()
29 {
30 static_assert(tuple_size<tuple<>>::value == 0, "");
31 static_assert(tuple_size<tuple<int>>::value == 1, "");
32 static_assert(tuple_size<tuple<void>>::value == 1, "");
33 typedef tuple<int,const int&,void> test_tuple1;
34 static_assert(tuple_size<test_tuple1>::value == 3, "");
35 static_assert(tuple_size<tuple<tuple<void>>>::value == 1, "");
36
37 static_assert(tuple_size<const tuple<>>::value == 0, "");
38 static_assert(tuple_size<const tuple<int>>::value == 1, "");
39 static_assert(tuple_size<const tuple<void>>::value == 1, "");
40 static_assert(tuple_size<const test_tuple1>::value == 3, "");
41 static_assert(tuple_size<const tuple<tuple<void>>>::value == 1, "");
42
43 static_assert(tuple_size<volatile tuple<>>::value == 0, "");
44 static_assert(tuple_size<volatile tuple<int>>::value == 1, "");
45 static_assert(tuple_size<volatile tuple<void>>::value == 1, "");
46 static_assert(tuple_size<volatile test_tuple1>::value == 3, "");
47 static_assert(tuple_size<volatile tuple<tuple<void>>>::value == 1, "");
48
49 static_assert(tuple_size<const volatile tuple<>>::value == 0, "");
50 static_assert(tuple_size<const volatile tuple<int>>::value == 1, "");
51 static_assert(tuple_size<const volatile tuple<void>>::value == 1, "");
52 static_assert(tuple_size<const volatile test_tuple1>::value == 3, "");
53 static_assert(tuple_size<const volatile tuple<tuple<void>>>::value == 1,"");
54 }
55