view lib/ur/option.urs @ 890:034eeb099564

Blobs tested in MySQL and SQLite
author Adam Chlipala <adamc@hcoop.net>
date Sat, 18 Jul 2009 10:27:32 -0400
parents 0d30e6338c65
children da3ec6014d2f
line wrap: on
line source
datatype t = datatype Basis.option

val eq : a ::: Type -> eq a -> eq (t a)

val isSome : a ::: Type -> t a -> bool

val mp : a ::: Type -> b ::: Type -> (a -> b) -> t a -> t b
val bind : a ::: Type -> b ::: Type -> (a -> option b) -> t a -> t b