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881191e8 | 1 | // { dg-do compile { target c++11 } } |
a1f009a6 | 2 | |
83ffe9cd | 3 | // Copyright (C) 2017-2023 Free Software Foundation, Inc. |
a1f009a6 JW |
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 | |
17 | // along with this library; see the file COPYING3. If not see | |
18 | // <http://www.gnu.org/licenses/>. | |
19 | ||
20 | ||
21 | // This file tests explicit instantiation of library containers. | |
22 | ||
23 | #include <queue> | |
24 | ||
25 | using std::priority_queue; | |
26 | using std::vector; | |
27 | ||
28 | template<typename A> | |
29 | constexpr bool default_constructible() | |
30 | { return std::is_default_constructible<A>::value; } | |
31 | ||
32 | static_assert(default_constructible<priority_queue<int>>(), | |
33 | "priority_queue<int>"); | |
34 | ||
35 | struct NonDefaultConstructible : vector<int> { | |
36 | NonDefaultConstructible(int) { } | |
37 | }; | |
38 | struct Cmp : std::less<int> { | |
39 | Cmp(int) { } | |
40 | }; | |
41 | static_assert( | |
42 | !default_constructible<priority_queue<int, NonDefaultConstructible>>(), | |
43 | "priority_queue<int, NonDefaultConstructible>"); | |
44 | static_assert( | |
45 | !default_constructible<priority_queue<int, NonDefaultConstructible, Cmp>>(), | |
46 | "priority_queue<int, NonDefaultConstructible, Cmp>"); | |
47 | static_assert( | |
48 | !default_constructible<priority_queue<int, vector<int>, Cmp>>(), | |
49 | "priority_queue<int, vector<int>, Cmp>"); |