Re: Arbitrary function: find the number(s) of expected arguments

[Stefan Monnier]

> Patches to add func-arity to Emacs are welcome.

Actually, I don't welcome them.  I always resisted them, because I think
that using func-arity is a bad idea.

As mentioned to my reply in the corresponding thread, you're better off
just making the call and catching the potential
`wrong-number-of-arguments' signal.


        Stefan


PS: Little quiz: what should be the func-arity
of (lambda (&rest x) (apply #'car x))?