Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!mnetor!uunet!husc6!cmcl2!rutgers!bellcore!faline!ulysses!allegra!alice!ark
From: ark@alice.UUCP
Newsgroups: comp.unix.wizards
Subject: Re: Why doesn't this qsort example work?
Message-ID: <7377@alice.UUCP>
Date: Mon, 19-Oct-87 13:49:25 EDT
Article-I.D.: alice.7377
Posted: Mon Oct 19 13:49:25 1987
Date-Received: Wed, 21-Oct-87 00:16:40 EDT
References: <7527@g.ms.uky.edu>
Organization: AT&T Bell Laboratories, Liberty Corner NJ
Lines: 14
Keywords: argh, frustration, core dump

In article <7527@g.ms.uky.edu>, sean@ukma.UUCP writes:
 
> I'm trying to use qsort(3) for the first time and I'm having a bit of
> trouble.  I've included some code here that reproduces the problem.

> 	/* this sorts t[] by the "a" field */
> 	qsort(&t[0], 2, sizeof(struct tstr), (*compar)());

Try

	qsort(&t[0], 2, sizeof(struct tstr), compar);

As you wrote it, you're calling compar with no arguments.
Presto, instant core dump!