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From: guy@sun.uucp (Guy Harris)
Newsgroups: net.lang.c
Subject: Re: what does exit(0) mean?
Message-ID: <3281@sun.uucp>
Date: Sun, 23-Feb-86 06:27:27 EST
Article-I.D.: sun.3281
Posted: Sun Feb 23 06:27:27 1986
Date-Received: Wed, 26-Feb-86 04:26:49 EST
References: <1113@brl-smoke.ARPA> <5020@alice.uUCp>
Organization: Sun Microsystems, Inc.
Lines: 14

> > The point is that the VMS C implementation must map its exit codes into
> > what the operating system expects. When the programmer says `exit 0', he
> > means `I succeeded'. The exit() function must support this.
> 
> No way!  exit(n) means "terminate and send the number n back to the system."

In UNIX C, definitely.  In ANSI C (as given in the current draft), no way.
Chapter and verse citations have been given in previous articles.  A VMS
ANSI C implementaion will return SS$NORMAL or whatever they call it when you
do "exit(0)".  Presumably, "exit(n)", for "n" != 0, can return with "n".
-- 
	Guy Harris
	{ihnp4, decvax, seismo, decwrl, ...}!sun!guy
	guy@sun.arpa	(yes, really)