c04p220.txt

Data Abstraction & Problem Solving with C++源码

// wait list - people waiting for certain titles
struct WaitNode
{  string    who;
   WaitNode *next;
};  // end struct

// stock item
class StockItem
{
public:
//  . . .
private:
   string title;
   int    have, want;
};  // end class

// inventory list - list of stock items
struct StockNode
{  StockItem    item;
   WaitNode  *waitHead, *waitTail;
   StockNode *next;
};  // end struct