From:	Hilaire Fernandes <fernand AT ms11 DOT hinet DOT net>
Newsgroups:	comp.os.msdos.djgpp
Subject:	newbie questions about C++
Date:	Fri, 28 Mar 1997 23:19:14 +0800
Organization:	DCI HiNet
Lines:	35
Message-ID:	<333BE16F.7C80@ms11.hinet.net>
NNTP-Posting-Host:	168.95.111.62
Mime-Version:	1.0
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Hello All,

Excuse me if this is not the right newsgroup for these questions but I
am only subscribed to this one related to C.

My questions are about C++ programming and are linked with DJGPP only
because I use it.

Well let start my questions with an example :

father *f;		// father is a class
soon *s;		// soon is a type herited from father

s=new soon();
f=(father *)s;

So is : 

Q1) delete(s);   EQUAL TO   delete(f)  ??

Or should I use instead :

Q2) free(s);     EQUAL TO   free(f)	   ??

I have this problem because I have a chained list of differents kinds of
objects all herited of a father class but in the list all cast to the
type father. So I don't know any more their original type.

Q3) I could use a virtual function calling the good destructor for each
kind of class but I'm not sure the destructor free the memory taken by
the new function ?? 	 	

Thank you

Hilaire

- Raw text -