Thanks Stefan.

That's great help and for now will allow me to provide working C# support to Emacs 26 users, while I work out what to do with our troublesome usage of internal cc-mode functions. I really appreciate it.

I picked up this project as a community service when editing C# stopped working sometime in Emacs 24, and it would be pretty daft to simply give up on it now. :)

Regards

Jostein Kjønigsen

On Mon, Mar 12, 2018, at 11:40 PM, Stefan Monnier wrote:

Is there any way for package to know how many mandatory arguments a

function has, to be able to branch out for compatibility reasons?

The way I recommend is:

(condition-case nil

(call1 ...)

(wrong-number-of-arguments

(call2 ...)))

-- Stefan