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Message-ID: <20240302091129.78d8bbb8@inria.fr>
Date: Sat, 2 Mar 2024 09:11:29 +0100
From: Jₑₙₛ Gustedt <jens.gustedt@...ia.fr>
To: Rich Felker <dalias@...c.org>
Cc: musl@...ts.openwall.com
Subject: Re: adding C23 support
Rich,
on Fri, 1 Mar 2024 16:17:32 -0500 you (Rich Felker <dalias@...c.org>)
wrote:
> On Fri, Mar 01, 2024 at 08:57:44PM +0100, Jₑₙₛ Gustedt wrote:
> > > Some questions:
> > >
> > > - Do the final stdbit.h interfaces require external functions, or
> > > is a header-only implementation acceptable? Has anything changed
> > > on these we need to be aware of?
> >
> > Yes, these require all external functions, besides for the tg
> > interfaces.
>
> That's unfortunate. It's a really huge number of functions that it's
> hard to imagine anyone wanting as external rather than inline.
This is a lot, I completely agree.
> Normally we aim to put everything in independent TUs, but I think here
> that might end up overflowing the ar/link command lines or something
> if we did it.
Then wait for the <math.h> functions, this is even worse :-(
At least on the architecture that I use musl is compiled with function
sections these days, so this should not blow up executable size
unreasonably, I think.
> It's that it follows a DRY principle, and avoids the extra creative
> machinery you were trying to do to get warnings/errors to appear in
> the right places due to how multiple clauses of _Generic are handled.
>
> I think the char version might still need _Generic, but it would be a
> _Generic outside/in-front-of the call (as a subexpression of the
> typeof for the cast) without anything complex inside it.
Ok, I'll look into that.
Thanks
Jₑₙₛ
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