Path: utzoo!utgpu!news-server.csri.toronto.edu!eecg.toronto.edu!zq
Newsgroups: comp.lang.c++
From: zq@eecg.toronto.edu (Qing Zheng)
Subject: Question for C++ expert
Message-ID: <1991Jan28.223456.465@jarvis.csri.toronto.edu>
Distribution: comp
Date: 29 Jan 91 03:34:56 GMT
Lines: 35



  If I have the following classes

clase Data {
	....
};

class A {
private:
	Data	buf[10];
public:
	const Data& operator[](int subscript) const
	{	return buf[subscript];		}
	...
};

  The question is I would like to have a full read access to the buf[], and
I also want to have write access to buf[5-9] using operator=. e.g.

	Data val;
	A    a;
        ....
	a[i] = a[j] + val; // 0 <= j <= 9; 5 <= i <= 9, OK
			   	       // however, if 0 <= i < 5, print out error message

  Is it possible ? How can I do that ?


  Thanks in advance. please send mail to zq@eecg.toronto.edu

  ---Qing