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From: Robert A Duff <bobduff@world.std.com>
Subject: Re: Compile time executed functions
Sender: bobduff@world.std.com (Robert A Duff)
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Date: Tue, 27 Mar 2001 14:39:36 GMT
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Date: 2001-03-27T14:39:36+00:00
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Mats Karlssohn <mats@mida.se> writes:

> Sometimes, especially when doing embedded programming, I feel a great
> need to execute a function to get literal initialization a constant.
> That is I'd like to have the compiler to execute a function for me (at
> compiletime!) and use the return of that function to initialize the
> constant.

If you inline the function, you are likely to get what you want,
depending on how good the compiler's support for inlining is.

> I realize that a lot of limitations must be put on the
> Generate_CRC_Table function, but, have something along these lines been
> considered by the language designers.

I don't think it's really a language design issue.  The language doesn't
talk about how clever the compiler is about doing things at compile
time, nor about what goes in ROM vs RAM.

- Bob