llvm-project/libcxx/test/std/containers/container.adaptors/stack/stack.defn/empty.pass.cpp

25 lines
579 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
//
//===----------------------------------------------------------------------===//
// <stack>
// bool empty() const;
#include <stack>
#include <cassert>
int main()
{
std::stack<int> q;
assert(q.empty());
q.push(1);
assert(!q.empty());
q.pop();
assert(q.empty());
}