Re: master d582356: * src/fns.c (Frandom): Handle bignum `limit`s

[Eli Zaretskii]

> From: Pip Cet <pipcet@gmail.com>
> Date: Sun, 7 Mar 2021 17:23:04 +0000
> Cc: Stefan Monnier <monnier@iro.umontreal.ca>, emacs-devel@gnu.org
> 
> > > > How do you know which functions to tag?
> > >
> > > That's the part I wasn't volunteering for :-) We'd have to do that
> > > manually, but we wouldn't have to do it all at once.
> > I don't see how we can do that, without some methodical procedure.
> 
> Incrementally?

What does this mean in practice, though?  Do you try tagging one
function after another, or do you have some guidelines which ones to
tag and which not to tag?

> > > But usually there will already be a comment in those functions
> > > explaining that they must not call GC, right?
> > No, I think these are rare exceptions rather than the rule.
> 
> So we can cover these rare exceptions, at least, converting an
> ambiguous and hard-to-grep comment into an unambiguous macro
> invocation? I don't really see the cons, though it's not as great as
> automatic tagging of functions would be...

Maybe there are no cons, but there are also no pro's: covering a small
fraction of the problem means the problem is still with us.