Given a sequence is there way to get the "constructor" of the sequence?
(sequence-constructor (list 1 2 3)) = list (sequence-constructor (vector 1 2 3)) = vector etc I'd like to use it for a declare-mappable macro that extends functions of one argument to map over sequences. As in (sin (list 1 2 3)) = (list (sin 1) (sin 2) (sin 3)). The sequence-map function is close, but it produces sequences. Now I could of course hard code the usual suspects, but it seems somewhat inelegant. -- Jens Axel Søgaard ____________________ Racket Users list: http://lists.racket-lang.org/users
