chickadee » srfi-209 » enum-type-contains?

enum-type-contains? enum-type enumprocedure

Returns #t if enum belongs to enum-type, and #f otherwise.

(enum-type-contains? color (enum-name->enum color 'red)) ⇒ #t
(enum-type-contains? pizza (enum-name->enum color 'red)) ⇒ #f