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Re: Lisp files that load cl-lib in problematical ways


From: Eli Zaretskii
Subject: Re: Lisp files that load cl-lib in problematical ways
Date: Thu, 26 Oct 2023 12:42:38 +0300

> Date: Thu, 26 Oct 2023 04:31:14 -0500
> Cc: acm@muc.de, emacs-devel@gnu.org, rms@gnu.org, stefankangas@gmail.com
> From: Adam Porter <adam@alphapapa.net>
> 
> > Btw, some of the cl-lib facilities should not be used in new code if
> > they have equivalent implementations ins seq.el (which is nowadays
> > preloaded) and in map.el.
> 
> Since seq.el and map.el use generic methods, don't they have some 
> additional overhead compared to type-specific functions, like cl-lib 
> ones that are specific to lists?  Or is it small enough now that it 
> doesn't matter anymore?

I don't know.  Feel free to investigate and post the results.  If
there's a significant run-time penalty, we should work on making these
packages faster, since we consider them to be part of our
infrastructure.



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