text: /*
   * Breaking the stack library
   */
  
  #include "stack_unsafe.h"
  #include <stdio.h> /* printf */
  
  int main(void)
  {
    stack s; /* test stack */
    int v1;  /* values popped */
    int v2;   
    int v3;   
  
    Initialize(&s);
    Push(1, &s);
    Push(2, &s);
    Push(3, &s);
  
    s.data[1] = 99;
  
    v1 = Pop(&s);
    v2 = Pop(&s);
    v3 = Pop(&s);
    printf("%d %d %d\n",v1,v2,v3);
  
    return 0;
  }