(doc boolean)

Cheers,
Stu

Stuart Halloway
Clojure/core
http://clojure.com

> >> (defmacro in?
> >>  "Returns true if colle contains elm, false otherwise."
> >>  [colle elm] 
> >> `(if (some #{~elm} ~colle) true false))
> 
> Yes. Should not be a macro. (There is no reason for it to be a macro).
> On top of that, it is not very often useful to convert nil to false as 
> clojure understands nil/not-nil as false/true everywhere.
> (Someone corrects me if there is a counter example.)
> 
> Might be useful for java interop?
> Then I would define a 
> (defn to-bool [x]
>    (if x true false))
> and use it when necessary.

-- 
You received this message because you are subscribed to the Google
Groups "Clojure" group.
To post to this group, send email to [email protected]
Note that posts from new members are moderated - please be patient with your 
first post.
To unsubscribe from this group, send email to
[email protected]
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en

Reply via email to