libcxx/test/std/containers/container.adaptors/priority.queue/priqueue.members/empty.pass.cpp

   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 // priority_queue();
  12
  13 // bool empty() const;
  14
  15 #include <queue>
  16 #include <cassert>
  17
  18 #include "test_macros.h"
  19
  20 int main(int, char**)
  21 {
  22     std::priority_queue<int> q;
  23     assert(q.empty());
  24     q.push(1);
  25     assert(!q.empty());
  26     q.pop();
  27     assert(q.empty());
  28
  29   return 0;
  30 }