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Showing content from https://lists.gnu.org/archive/html/help-gnu-emacs/2015-08/msg00728.html below:

get nargs for a function

Hi all,

Is there a built in way to return the arg list (actually just the number of 
args) for a function that has been passed to me?

If I was just in dynamic scope, I could get cadr and count the size, but I have 
to support closure as well which is caddr (and however that changes in the 
future).

Best regards,
Sam

• get nargs for a function, Sam Halliday <=
  • Re: get nargs for a function, Ian Zimmerman, 2015/08/28
  • Re: get nargs for a function, Stefan Monnier, 2015/08/29
  • Message not available
    • Re: get nargs for a function, Sam Halliday, 2015/08/29
      • Re: get nargs for a function, Stefan Monnier, 2015/08/29
      • Message not available
      • Re: get nargs for a function, Sam Halliday, 2015/08/30
      • Re: get nargs for a function, Stefan Monnier, 2015/08/30

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