chickadee » srfi-217 » iset-contains?

iset-contains? iset elementprocedure

Returns #t if element is a member of iset and #f otherwise.

Examples:

   (iset-contains? (iset 2 3 5 7 11) 5) ⇒ #t
   (iset-contains? (iset 2 3 5 7 11) 4) ⇒ #f