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authorCamil Staps2016-02-02 19:24:50 +0100
committerCamil Staps2016-02-02 19:24:50 +0100
commita7d7542dc646a5fd124ef71e71ce260889f1701b (patch)
tree04ed89503bbb3cc9933273a1326a53ca724c3492 /files/practicum/StdMaybeMonad.icl
parentweek6 camil: working positioning of lines by putting empties at left and righ... (diff)
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-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