Mercurial > urweb
annotate tests/recBad.ur @ 646:fb2a0e76dcef
ListEdit demo, minus prose
author | Adam Chlipala <adamc@hcoop.net> |
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date | Tue, 10 Mar 2009 12:44:40 -0400 |
parents | 71bafe66dbe1 |
children |
rev | line source |
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adamc@238 | 1 datatype list a = Nil | Cons of a * list a |
adamc@238 | 2 |
adamc@242 | 3 fun append (t ::: Type) (ls1 : list t) (ls2 : list t) : list t = |
adamc@238 | 4 case ls1 of |
adamc@238 | 5 Nil => ls2 |
adamc@238 | 6 | Cons (h, t) => Cons (h, append t ls2) |
adamc@238 | 7 |
adamc@238 | 8 (*val rec ones : list int = Cons (1, ones)*) |
adamc@239 | 9 val rec ones = fn () => Cons (1, ones ()) |