From aebffcc1c786e8cea15fff6f324bf71fc37cbb37 Mon Sep 17 00:00:00 2001
From: Mart Lubbers
Date: Fri, 24 Apr 2015 09:10:46 +0200
Subject: updated practicum files

---
 files/practicum/StdMaybeMonad.icl | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 files/practicum/StdMaybeMonad.icl

(limited to 'files/practicum/StdMaybeMonad.icl')

diff --git a/files/practicum/StdMaybeMonad.icl b/files/practicum/StdMaybeMonad.icl
new file mode 100644
index 0000000..1c6277d
--- /dev/null
+++ b/files/practicum/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
-- 
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