ZooAnimal.h
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/*ident "@(#)cls4:demo/lang/ZooAnimal.h 1.1" */
/*#########################################################################
# Copyright (c) 1989 AT&T
# All Rights Reserved
#
# THIS IS PROPRIETARY SOURCE CODE OF AT&T
#
# This code has been published in
# C++ Primer by Stanley Lippman
# Addison_Wesley Publishing Company
#
#########################################################################*/
#ifndef ZOO_ANIMAL_H
#define ZOO_ANIMAL_H
#include <iostream.h>
class ZooAnimal;
extern ostream& operator<<(ostream&, ZooAnimal&);
enum ZooLocs { ZOOANIMAL, BEAR, PANDA };
class ZooAnimal {
friend void print( ZooAnimal*, ostream& = cout );
public:
ZooAnimal( char *s = "ZooAnimal" );
virtual ~ZooAnimal() { delete name; }
void link( ZooAnimal* );
virtual void print( ostream& );
virtual void isA( ostream& );
protected:
char *name;
ZooAnimal *next;
};
#endif