Re: Bug 4689 & deprecating limroot

For defmfun, there's a :deprecated keyword argument, if I remember
correctly. For purely internal functions, we could create a macro like
defun-deprecated for defining a function that raises the error.

Barton Willis via Maxima-discuss <[email protected]>
schrieb am Mi., 27. Mai 2026, 14:05:

> To fix bug 4689 <https://sourceforge.net/p/maxima/bugs/4689/>, I revised
> the cryptically named function colexpt. The revised code no longer
> requires the function limroot. Since limroot is not called by any other
> function and does not appear to be generally useful, I propose to
> deprecating it. Accordingly, I propose replacing
>
> (defun limroot (exp power)
>   (cond ((or (atom exp) (not (member (caar exp) '(mtimes mexpt) :test
> #'eq)))
> (limroot (list '(mexpt) exp 1) power)) ;This is strange-JIM.
> ((mexptp exp)  (m^ (cadr exp)
>   (sratsimp (m* (caddr exp) (m^ power -1.)))))
> (t (m*l (mapcar #'(lambda (x)
>    (limroot x power))
> (cdr exp))))))
>
>  with
>
> (defun limroot (&rest args)
>   "limroot is deprecated and no longer available."
>   (declare (ignore args))
>   (merror "limroot is deprecated and no longer available."))
>
> If anyone has an emotional attachment to limroot, speak now or forever
> hold your peace. There is always the possibility that someone has 1970s-era
> code on a floppy disk in a sock drawer that still calls it.
> More seriously: Maxima does not have a uniform mechanism for deprecating
> functions. If anyone has suggestions for a better approach, I’m happy to
> hear them.
>
> --Barton
>
>
>
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