Date: Wed, 19 Dec 2001 02:01:01 +1100 (EST) From: Bruce Evans <bde@zeta.org.au> To: Mark Murray <mark@grondar.za> Cc: John Baldwin <jhb@FreeBSD.org>, "David O'Brien" <obrien@FreeBSD.org>, <cvs-all@FreeBSD.org>, <cvs-committers@FreeBSD.org>, Luigi Rizzo <rizzo@aciri.org>, Garance A Drosihn <drosih@rpi.edu> Subject: Re: Are prototypes for main() illegal by any standard ? (was Re: Message-ID: <20011219014745.N4646-100000@gamplex.bde.org> In-Reply-To: <200112180848.fBI8mvO00685@grimreaper.grondar.org>
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On Tue, 18 Dec 2001, Mark Murray wrote:
> AFAIK, this is perfectly legal C:
>
> /* begin */
> void printf(char *, ...)
>
> void main(void)
> {
> printf("Hello world");
> }
> /* end */
>
> And it should compile warning-free and run without error. Agreed
Except for one syntax error and 2 type mismatches.
> that the style sucks, but it is _legal_ - and any compiler's prior
> assumed knowledge about main is plain wrong - it is a linker thing
> to use ``main'' as an entry point, and nobody else's damn business
> what it is after that! (argc and argv are likewise conventions that
> are less useful in an embedded environment with no shell (ya, ya I
> know about execv :)).
>
> Now if anyone can show official standards showing me that I'm
> wrong here, I'll shut up and back off. :-)
See other replies. Authors of "void main()" are often laughed at in
comp.lang.c.
Bruce
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