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| author | Mart Lubbers | 2015-04-24 14:35:17 +0200 |
|---|---|---|
| committer | Mart Lubbers | 2015-04-24 14:35:17 +0200 |
| commit | a067356625105f50978443d3b0a0a5d8f6391184 (patch) | |
| tree | d194d49f36232b8e5860ca557c75f11a3ac05afe /fp2/week2/mart/StdMaybeMonad.icl | |
| parent | updated practicum files (diff) | |
rare shit
Diffstat (limited to 'fp2/week2/mart/StdMaybeMonad.icl')
| -rw-r--r-- | fp2/week2/mart/StdMaybeMonad.icl | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/fp2/week2/mart/StdMaybeMonad.icl b/fp2/week2/mart/StdMaybeMonad.icl new file mode 100644 index 0000000..1c6277d --- /dev/null +++ b/fp2/week2/mart/StdMaybeMonad.icl @@ -0,0 +1,10 @@ +implementation module StdMaybeMonad
+
+import StdMonad
+
+:: Maybe a = Nothing | Just a
+
+instance return Maybe where return x = Just x
+instance >>= Maybe where >>= (Just x) f = f x
+ >>= Nothing f = Nothing
+instance fail Maybe where fail = Nothing
|