1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 // <queue>
10 // UNSUPPORTED: c++03, c++11, c++14
11
12 #include <queue>
13 #include <list>
14 #include <iterator>
15 #include <cassert>
16 #include <cstddef>
17
18
main(int,char **)19 int main(int, char**)
20 {
21 // Test the explicit deduction guides
22 {
23 // queue(const Container&, const Alloc&);
24 // The '45' is not an allocator
25 std::queue que(std::list<int>{1,2,3}, 45); // expected-error-re {{no viable constructor or deduction guide for deduction of template arguments of '{{(std::)?}}queue'}}
26 }
27
28 {
29 // queue(const queue&, const Alloc&);
30 // The '45' is not an allocator
31 std::queue<int> source;
32 std::queue que(source, 45); // expected-error-re {{no viable constructor or deduction guide for deduction of template arguments of '{{(std::)?}}queue'}}
33 }
34
35 // Test the implicit deduction guides
36 {
37 // queue (allocator &)
38 std::queue que((std::allocator<int>())); // expected-error-re {{no viable constructor or deduction guide for deduction of template arguments of '{{(std::)?}}queue'}}
39 // Note: The extra parens are necessary, since otherwise clang decides it is a function declaration.
40 // Also, we can't use {} instead of parens, because that constructs a
41 // stack<allocator<int>, allocator<allocator<int>>>
42 }
43
44
45 return 0;
46 }
47