libcxx/test/std/containers/container.adaptors/priority.queue/priqueue.members/top.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 // const_reference top() 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     q.push(1);
  24     assert(q.top() == 1);
  25     q.push(3);
  26     assert(q.top() == 3);
  27     q.push(2);
  28     assert(q.top() == 3);
  29
  30   return 0;
  31 }