//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++03, c++11, c++14, c++17, c++20
// <queue>
// template <class InputIterator>
// queue(InputIterator, InputIterator);
#include <cassert>
#include <queue>
#include <type_traits>
#include "test_allocator.h"
static_assert(!std::is_constructible_v<std::queue<int>, int, int, std::allocator<int>>);
static_assert(!std::is_constructible_v<std::queue<int>, int*, int*, int>);
static_assert( std::is_constructible_v<std::queue<int, std::deque<int, test_allocator<int>>>, int*, int*, test_allocator<int>>);
static_assert(!std::is_constructible_v<std::queue<int, std::deque<int, test_allocator<int>>>, int*, int*, std::allocator<int>>);
template <class T>
struct alloc : test_allocator<T> {
alloc(test_allocator_statistics* a);
template <class U>
struct rebind {
using other = alloc<U>;
};
};
static_assert(
std::is_constructible_v<std::queue<int, std::deque<int, alloc<int>>>, int*, int*, test_allocator_statistics*>);
int main(int, char**) {
const int a[] = {4, 3, 2, 1};
std::queue<int> queue(a, a + 4);
assert(queue.front() == 4);
queue.pop();
assert(queue.front() == 3);
queue.pop();
assert(queue.front() == 2);
queue.pop();
assert(queue.front() == 1);
queue.pop();
assert(queue.empty());
return 0;
}