Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.milw.wisc.edu!lakesys!chad
From: chad@lakesys.UUCP (Chad Gibbons)
Newsgroups: comp.lang.c
Subject: malloc() and sizeof
Message-ID: <510@lakesys.UUCP>
Date: 3 Apr 89 08:08:36 GMT
Reply-To: chad@lakesys.UUCP (Chad Gibbons)
Distribution: usa
Organization: Lake Systems - Milwaukee, Wisconsin
Lines: 19


	I have seen a somewhat strange style of coding a malloc() call on
some systems.  Usually, given struct foo, you would execute the call such
as this:

	struct foo tmp = (struct foo *)malloc(sizeof(struct foo));

The style I have seen used recently around here has been this:

	struct foo tmp = (struct foo *)malloc(sizeof *tmp);


	I ran tests of this on several different systems, and they all
compiled and worked fine...however, this seems to be a poor programming
practice at best, and a shoestring at worse.  Anyone have any comments
about this?  I would assume it wouldn't be a good idea to use it, but
then again, you never know.
-- 
D. Chadwick Gibbons, chad@lakesys.lakesys.com, ...!uunet!marque!lakesys!chad