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From: Keith Thompson <Keith.S.Thompson+u@gmail.com>
Newsgroups: comp.lang.c
Subject: Re: Sort of trivial code challenge - may be interesting to you anyway
Date: Wed, 04 Mar 2026 11:25:05 -0800
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DFS <nospam@dfs.com> writes:
> On 3/3/2026 9:20 AM, Tim Rentsch wrote:
>> DFS <nospam@dfs.com> writes:
>>> Is main() OK?
>> Yes, sorry, not mentioning main() was an oversight on my part.
>> (Still not okay to call it.)
>
> I was actually kidding, but I see online you can do some trickery to
> make a standalone C program work without main().
>
> Why?  Just for s's and giggles?
[...]

I'm curious what you're referring to.  It's not possible to have a
working *portable* C program (for a hosted implementation) without
a main function.  There might be some compiler-specific tricks for
using or specifying an entry point with a different name.

For freestanding implementations, the name and type of the entry
point are implementation-defined, and portability goes out the
window.

-- 
Keith Thompson (The_Other_Keith) Keith.S.Thompson+u@gmail.com
void Void(void) { Void(); } /* The recursive call of the void */