Yurttas/PL/OOL/Cplusplus/F/05/10/00/Q.h

 1/*
 2   Copyright(C) 2007
 3   All Rights Reserved. Salih Yurttas, ZCubes, BitsOfCode Software Systems, Inc..
 4
 5   Permission to use, copy, modify, and distribute this
 6   software and its documentation for EDUCATIONAL purposes
 7   and without fee is hereby granted provided that this
 8   copyright notice appears in all copies.
 9
10   date   : December 1, 2007.
11   author : Salih Yurttas.
12
13   Q.h
14*/
15
16
17#ifndef Q_H
18#define Q_H
19
20#include "P.h"
21
22template<class T>
23class Q : public P<T> {
24public:
25  Q();
26
27  Q(const Q<T>&);
28
29  virtual Q<T>& operator=(const Q<T>&);
30
31  virtual T get_a(const int) const; // in: index, out: value
32
33  virtual T get_b() const;
34
35  template<class U>           // this syntax changed several times
36  friend ostream& operator<<(ostream&,
37                             const Q<T>&);
38
39
40protected:
41  T b;
42};
43#endif