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From: johnb@srchtec.UUCP (John Baldwin)
Newsgroups: comp.lang.c++
Subject: Re: Private Enumerations?
Message-ID: <197@srchtec.UUCP>
Date: 10 Sep 90 21:55:46 GMT
References: <15414@reed.UUCP> <1683@m1.cs.man.ac.uk>
Organization: search technology, inc.
Lines: 28

In article <1683@m1.cs.man.ac.uk> jk@cs.man.ac.uk (John Kewley ICL) writes:
>
>class Boolean
>{
>public:
>    Boolean();
>    Boolean(int n);
>
>private:
>    int value;
>};

Okay, now add...

Boolean&  Boolean::operator=(int rhv)   // rhv == right-hand value
{
   value = rhv ? TRUE : FALSE;
}


   Now you can't even manage to assign a value other than TRUE
or FALSE to the class instance.  With a little more work on top
of this, its a true multipurpose boolean.
-- 
John T. Baldwin                      |  johnb%srchtec.uucp@mathcs.emory.edu
Search Technology, Inc.              | 
                                     | "... I had an infinite loop,
My opinions; not my employers'.      |  but it was only for a little while..."