chickadee » srfi-217 » iset-member

iset-member iset element defaultprocedure

Returns the element of iset that is equal to element. If element is not a member of iset, default is returned.

Examples:

   (iset-member (iset 2 3 5 7 11) 7 #f) ⇒ 7
   (iset-member (iset 2 3 5 7 11) 4 'failure) ⇒ failure