[Chaprnks]

Quote:

Originally Posted by paytas http://en.wikipedia.org/wiki/Stack_(data_structure)

Thanks for attempting to help. I've tried to understand the underflow and overflow examples, although they don't seem to correspond with anything in pawno.

Code:

  int pop(STACK *ps)
  {
    if(empty(ps)){
      printf("Error: stack underflow");
      exit(EXIT_FAILURE);
    } else 
      return(ps->items[(ps->top)--]);
  }


  void push(int x, STACK *ps)
  {
    if(ps->top == STACKSIZE-1){
      printf("Error: stack overflow");
      exit(EXIT_FAILURE);
    } else 
      ps->items[++(ps->top)] = x;
      
    return;
  }