Mercurial > repo
view interps/rhotor/Uniqs.hs @ 6272:c98e5b8f8ba8
<tswett> echo \'cat "$(find evil -type f | shuf -n1)" | \'"tr \'[:lower:]\' \'[:upper:]\'" > bin/evil
author | HackBot |
---|---|
date | Thu, 26 Nov 2015 16:38:23 +0000 |
parents | 859f9b4339e6 |
children |
line wrap: on
line source
module Uniqs ( Uniqs(Root, A, B, C) ) where data Uniqs = A Uniqs | B Uniqs | C Uniqs | Root instance Eq Uniqs where (==) Root Root = True (==) (A a) (A b) = a == b (==) (B a) (B b) = a == b (==) (C a) (C b) = a == b (==) _ _ = False (/=) a b = not (a == b) instance Show Uniqs where show Root = "R" show (A b) = 'A':show b show (B b) = 'B':show b show (C b) = 'C':show b