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libcxx/test/std/containers/container.adaptors/queue/queue.defn/pop.pass.cpp

38 lines
844 B
C++

//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <queue>
// void pop();
#include <queue>
#include <cassert>
int main()
{
std::queue<int> q;
assert(q.size() == 0);
q.push(1);
q.push(2);
q.push(3);
assert(q.size() == 3);
assert(q.front() == 1);
assert(q.back() == 3);
q.pop();
assert(q.size() == 2);
assert(q.front() == 2);
assert(q.back() == 3);
q.pop();
assert(q.size() == 1);
assert(q.front() == 3);
assert(q.back() == 3);
q.pop();
assert(q.size() == 0);
}