typed-racket/typed-racket-test/succeed/values-dots2.rkt
2014-12-16 10:07:25 -05:00

17 lines
531 B
Racket

#lang typed/racket/base
(: map-with-funcs (All (b c d e ) ((b c d e -> b)
(b c d e -> c)
(b c d e -> d)
(b c d e -> e)
->
(b c d e -> (List b c d e)))))
(define (map-with-funcs f1 f2 f3 f4)
(lambda (b0 c0 d0 e0 )
(list (f1 b0 c0 d0 e0 )
(f2 b0 c0 d0 e0 )
(f3 b0 c0 d0 e0 )
(f4 b0 c0 d0 e0 ))))
(map-with-funcs + - * /)