preface.make
Via_map.Req
preface
preface.core
preface.specs
preface.stdlib
type 'a t
The type held by the Functor.
Functor
val map : ('a -> 'b) -> 'a t -> 'b t
Mapping over from 'a to 'b over 'a t to 'b t.
'a
'b
'a t
'b t