c 2b 2b queue front

1// queue::front
2#include <iostream>       // std::cout
3#include <queue>          // std::queue
4
5int main ()
6{
7  std::queue<int> myqueue;
8
9  myqueue.push(77);
10  myqueue.push(16);
11
12  myqueue.front() -= myqueue.back();    // 77-16=61
13
14  std::cout << "myqueue.front() is now " << myqueue.front() << '\n';
15
16  return 0;
17}