Path: utzoo!mnetor!uunet!husc6!cmcl2!brl-adm!umd5!ames!amdahl!dlb!megatest!djones
From: djones@megatest.UUCP (Dave Jones)
Newsgroups: comp.lang.c
Subject: Re: exit(main(argc,argv,env));
Message-ID: <174@goofy.megatest.UUCP>
Date: 23 Dec 87 00:05:19 GMT
References: <1286@laidbak.UUCP>
Organization: Megatest Corporation, San Jose, Ca
Lines: 40

[...]

> At least in the UNIX environment, exit() is a function that flushes all
> buffers (and closes all file descriptors?), as well as handling functions
> registered via onexit(), finally calling _exit(), a system call that
> never returns.
> 
> Using return instead of exit() bypasses this cleanup operation.
> 
> 
> 
> 
> -- 
> --------------------"Well, it looked good when I wrote it"---------------------
>  Verbal: Dave Burton                        Net: ...!ihnp4!laidbak!daveb


Hum.  "onexit"... Just what's needed.  (See my previous note, where I 
rambled on about "Lexit()".

But on my Sun-3, I find no manual-page for onexit, and 

nm /lib/libc.a | grep onexit

returns silently.  So it looks as though not ALL unixes have onexit().

By the way, I've figured out what those long canned signatures with
disclaimers are for.  It's to keep vn from rejecting your reply because
"quoted text is longer than new text"!  So...


		Dave Jones
		Megatest Corp.
		880 Fox Lane
		San Jose, CA.
		95131

		(408) 437-9700 Ext 3227
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