From:	"Simon" <simon AT browns DOT co DOT uk>
Newsgroups:	comp.os.msdos.djgpp
Subject:	virtual function explosion of assembler code
Date:	Wed, 05 Feb 1997 15:17:20 GMT
Organization:	Dell Computer Corporation
Message-ID:	<01bc1377$d5fe9ac0$0a93d9c2@simon.browns.co.uk>
NNTP-Posting-Host:	w10.browns.co.uk
Lines:	14
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

We have just started experimenting with V272 of the GCC 68040 cross
compiler having been using V257.

A source code module which uses a lot of derived classes with virtual
functions exploded in terms of the size of the 68040 assembler output. 

Under V257 the NEW operator merely caused each instance of a derived class
to have an appropriate pointer to the virtual function table inserted.

Under V272 the  NEW operator has also caused the compiler to generate what
look like constructor and initialisor functions for each derived class type
but we don't want them and no one calls them. Can anyone help. ?

Simon Watson

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