From a067356625105f50978443d3b0a0a5d8f6391184 Mon Sep 17 00:00:00 2001 From: Mart Lubbers Date: Fri, 24 Apr 2015 14:35:17 +0200 Subject: rare shit --- fp2/week2/mart/oldold/old/StdMaybeMonad.dcl | 9 +++++++++ 1 file changed, 9 insertions(+) create mode 100644 fp2/week2/mart/oldold/old/StdMaybeMonad.dcl (limited to 'fp2/week2/mart/oldold/old/StdMaybeMonad.dcl') diff --git a/fp2/week2/mart/oldold/old/StdMaybeMonad.dcl b/fp2/week2/mart/oldold/old/StdMaybeMonad.dcl new file mode 100644 index 0000000..e9ebec1 --- /dev/null +++ b/fp2/week2/mart/oldold/old/StdMaybeMonad.dcl @@ -0,0 +1,9 @@ +definition module StdMaybeMonad + +import StdMonad + +:: Maybe a = Nothing | Just a + +instance return Maybe +instance >>= Maybe +instance fail Maybe -- cgit v1.2.3