llvm-project/libcxx/test/std/containers/container.adaptors/queue/queue.defn/push.pass.cpp

32 lines
784 B
C++

//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
// <queue>
// void push(const value_type& v);
#include <queue>
#include <cassert>
int main()
{
std::queue<int> q;
q.push(1);
assert(q.size() == 1);
assert(q.front() == 1);
assert(q.back() == 1);
q.push(2);
assert(q.size() == 2);
assert(q.front() == 1);
assert(q.back() == 2);
q.push(3);
assert(q.size() == 3);
assert(q.front() == 1);
assert(q.back() == 3);
}