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C/C++ Source or Header  |  2000-05-25  |  524 b   |  26 lines
  1. //: C13:Stack4.cpp {O}
  2. // From Thinking in C++, 2nd Edition
  3. // Available at http://www.BruceEckel.com
  4. // (c) Bruce Eckel 1999
  5. // Copyright notice in Copyright.txt
  6. // New version of Stack
  7. #include "Stack4.h"
  8.  
  9. void* Stack::pop() {
  10.   if(head == 0) return 0;
  11.   void* result = head->data;
  12.   Link* oldHead = head;
  13.   head = head->next;
  14.   delete oldHead;
  15.   return result;
  16. }
  17.  
  18. Stack::~Stack() {
  19.   Link* cursor = head;
  20.   while(head) {
  21.     cursor = cursor->next;
  22.     delete head;
  23.     head = cursor;
  24.   }
  25. } ///:~
  26.