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
11// template <class Alloc>
12// queue(const queue& q, const Alloc& a);
13
14#include <queue>
15#include <cassert>
16
17#include "test_macros.h"
18#include "test_allocator.h"
19
20template <class C>
21C make(int n) {
22 C c;
23 for (int i = 0; i < n; ++i)
24 c.push_back(i);
25 return c;
26}
27
28typedef std::deque<int, test_allocator<int> > C;
29
30template <class T>
31struct test : public std::queue<T, C> {
32 typedef std::queue<T, C> base;
33 typedef test_allocator<int> allocator_type;
34 typedef typename base::container_type container_type;
35
36 explicit test(const allocator_type& a) : base(a) {}
37 test(const container_type& container, const allocator_type& a) : base(container, a) {}
38 test(const test& q, const allocator_type& a) : base(q, a) {}
39 allocator_type get_allocator() { return this->c.get_allocator(); }
40};
41
42int main(int, char**) {
43 test<int> q(make<C>(5), test_allocator<int>(4));
44 test<int> q2(q, test_allocator<int>(5));
45 assert(q2.get_allocator() == test_allocator<int>(5));
46 assert(q2.size() == 5);
47
48 return 0;
49}
50

source code of libcxx/test/std/containers/container.adaptors/queue/queue.cons.alloc/ctor_queue_alloc.pass.cpp