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From: gwyn@smoke.brl.mil (Doug Gwyn)
Newsgroups: comp.std.c
Subject: Re: Must main return a value?
Message-ID: <16575@smoke.brl.mil>
Date: 28 Jun 91 19:34:01 GMT
References: <7830001@hpwrce.HP.COM>
Organization: U.S. Army Ballistic Research Laboratory, APG, MD.
Lines: 9

In article <7830001@hpwrce.HP.COM> walterm@hpwrce.HP.COM (Walter Murray) writes:
>Many people have written that the main function must return a value.
>I can't find such a requirement in the Standard.  I have read 2.1.2.2.3
>and 3.6.6.4.  Am I missing something?

You must be -- 2.1.2.2.3 states explicitly "If the main function executes a
return that specifies no value, the termination status returned to the host
environment is undefined."  That meets the condition for causing undefined
behavior on at least two counts.