Re: Scheme 102

[Jorgen Schaefer]

address@hidden writes:

> On Wed, Nov 28, 2001 at 11:45:58AM -0600, address@hidden wrote:
> > 
> > hello,
> > 
> > is it possible to dynamically discover the number of parameters to a
> > function?
> 
> Would this be what you are looking for?
> 
> | bash-2.05$ guile
> | guile> (arity display)ay)
> | 1 required and 1 optional argument.
> | guile> (arity map)    
> | 2 or more arguments.
> | guile> 

I guess he's looking more for the programmatic way to get that
information...


guile> (procedure-property display 'arity)
(1 1 #f)
guile> (procedure-property map 'arity)
(2 0 #t)

Greetings,
        -- Jorgen

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