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From: Keith Thompson <Keith.S.Thompson+u@gmail.com>
Newsgroups: comp.lang.c
Subject: Re: Writing own source disk
Date: Mon, 03 Jun 2024 17:35:25 -0700
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Keith Thompson <Keith.S.Thompson+u@gmail.com> writes:
> bart <bc@freeuk.com> writes:
> [...]
>> I assume you can use __FILE__ with #embed? (I can do that with my
>> version of it).
>
> Yes, but not reliably.
>
> __FILE__ expands to "The presumed name of the current source file (a
> character string literal)".  That's rather vague.
>
> With gcc and clang, it expands to the file name argument given to the
> compiler, or to the argument of the #include directive.  The running
> program may or may not be able to access the source file using that
> name.  The source file might not even exist when the program runs.

I was thinking of using __FILE__ to access the source file at run time.
#embed is of course handled at compile time.  It's very likely, but
still not quite guaranteed, that `#embed __FILE__` will be able to
access the source file.

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