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
18int main(int, char**) {
19 // Test the explicit deduction guides
20 {
21 // queue(const Container&, const Alloc&);
22 // The '45' is not an allocator
23 std::queue que(std::list<int>{1, 2, 3}, 45);
24 // expected-error-re@-1 {{no viable constructor or deduction guide for deduction of template arguments of '{{(std::)?}}queue'}}
25 }
26
27 {
28 // queue(const queue&, const Alloc&);
29 // The '45' is not an allocator
30 std::queue<int> source;
31 std::queue que(source, 45);
32 // expected-error-re@-1 {{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>()));
39 // expected-error-re@-1 {{no viable constructor or deduction guide for deduction of template arguments of '{{(std::)?}}queue'}}
40 // Note: The extra parens are necessary, since otherwise clang decides it is a function declaration.
41 // Also, we can't use {} instead of parens, because that constructs a
42 // stack<allocator<int>, allocator<allocator<int>>>
43 }
44
45 return 0;
46}
47

source code of libcxx/test/std/containers/container.adaptors/queue/queue.cons/deduct.verify.cpp