Mercurial > urweb
annotate tests/pcase.ur @ 2160:72fe1cc704c5
Tag NULLs with their types in SQL, to help the DBMS do type inference
author | Adam Chlipala <adam@chlipala.net> |
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date | Sat, 04 Jul 2015 19:24:26 -0400 |
parents | 71bafe66dbe1 |
children |
rev | line source |
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adamc@173 | 1 val flip = fn x : int => case x of 0 => 1 | _ => 0 |
adamc@173 | 2 |
adamc@173 | 3 val zero = flip 1 |
adamc@173 | 4 val one = flip 0 |
adamc@173 | 5 |
adamc@173 | 6 val flipS = fn x : string => case x of "" => "Hello world!" | _ => "" |
adamc@173 | 7 |
adamc@173 | 8 val s1 = flipS "" |
adamc@173 | 9 val s2 = flipS "Boop" |