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From: ark@alice.UUCP (Andrew Koenig)
Newsgroups: comp.lang.c++
Subject: Re: True Virtual
Message-ID: <10422@alice.UUCP>
Date: 1 Feb 90 14:19:57 GMT
References: <4800082@m.cs.uiuc.edu> <4924@drutx.ATT.COM> <10382@alice.UUCP> <4982@drutx.ATT.COM>
Organization: AT&T Bell Laboratories, Liberty Corner NJ
Lines: 21

In article <4982@drutx.ATT.COM>, kvt@drutx.ATT.COM (TranKV) writes:

> What I meant to ask was if the following works:
> 
> 	class Foo {
> 	public:
> 		Foo () {}
> 		virtual ~Foo () = 0;
> 		^^^^^^^^^^^^^^^^^^^^
> 		// ...
> 	};

Remember that when you destroy an object of a derived class,
that involves executing the base class destructor too!

Therefore, it doesn't make sense to have a pure virtual
destructor, as it would preclude destroying objects not
only of that class but of any class derived from it.
-- 
				--Andrew Koenig
				  ark@europa.att.com