// http://en.cppreference.com/w/cpp/container/queue
// queue example
#include <iostream>
#include <string>
#include <queue>
using namespace std;

struct paire { string ident; int valeur; };

int main()
{
  queue<paire> maListe;

  maListe.push({"x1", 5});
  maListe.push({"mu", 3});
  maListe.push({"y1", 1});
  maListe.push({"a3", 7});

  while(!maListe.empty())
  {
    cout << maListe.front().ident << " = " << maListe.front().valeur << endl;
    maListe.pop();
  }

  return 0;
} // main()