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From: jbuck@galileo.berkeley.edu (Joe Buck)
Newsgroups: comp.lang.c++
Subject: Re: problem with virtual function
Message-ID: <38283@ucbvax.BERKELEY.EDU>
Date: 20 Aug 90 19:25:59 GMT
References: <9008201757.AA23899@sirius.risc.com>
Sender: usenet@ucbvax.BERKELEY.EDU
Reply-To: jbuck@galileo.berkeley.edu (Joe Buck)
Lines: 15

In article <9008201757.AA23899@sirius.risc.com>, ckl@SIRIUS.RISC.COM
(Carl K. Lim) writes:
|> Hello.  I have this problem: when I'm calling a virtual function from
a parent
|> class's constructor, it fails to execute the derived class's function.

This is a "feature" and is documented in Ellis and Stroustrup, which is the
base document for the C++ standard.  Why?  Because in the base class
constructor, the derived part of the object hasn't been constructed yet;
it's in an undefined state.


--
Joe Buck
jbuck@galileo.berkeley.edu	 {uunet,ucbvax}!galileo.berkeley.edu!jbuck