Listing 10 A test program for a generic queue of void * used as a queue of int

//
// inttst3.cpp - test genq3
//

#include <iostream.h>

#include "genq3.h"
#include "showheap.h"

#define DIM(a) (sizeof(a)/sizeof(a[0]))

void print_int(void *e)
   {
   cout << " "<< *(int *)e;
   }

void test()
   {
   char c;
   size_t qn;
   int qe;
   int *pqe;
   void *pv;
   genq q[4];
   while (cin >> c)
      {
      showheap();
      if (c == 'q')
         break;
      if (c == 'a')
         {
         cin >> qn >> qe;
         if (qn >= DIM(q))
            cout << "no such queue\n";
         else
            q[qn].append(new int(qe));
         }
      else if (c == 'c')
         {
         cin >> qn;
         if (qn >= DIM(q))
            cout << "no such queue\n";
         else
            q[qn].clear();
         }
      else if (c == 'r')
         {
         cin >> qn;
         if (qn >= DIM(q))
            cout << "no such queue\n";
         else if (q[qn].remove(pv))
            {
            pqe = (int *)pv;
            cout << "removed"
                << *pqe << '\n';
            delete pqe;
            }
         else
            cout << "q[" << qn
                << "] is empty\n";
         }
      else
         continue;
      for (size_t i = 0; i < DIM(q); ++i)
         {
         cout << i << ':';
         q[i].apply(print_int);
         cout << "\n";
         }
      }
   }

int main()
   {
   showheap();
   test();
   showheap();
   return 0;
   }

// End of File