X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.scl.compiler%2Ftests%2Forg%2Fsimantics%2Fscl%2Fcompiler%2Ftests%2Fscl%2FCollaz.scl;fp=bundles%2Forg.simantics.scl.compiler%2Ftests%2Forg%2Fsimantics%2Fscl%2Fcompiler%2Ftests%2Fscl%2FCollaz.scl;h=2e4552d0d6235202dfcf3d849a459984fdf6673b;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.scl.compiler/tests/org/simantics/scl/compiler/tests/scl/Collaz.scl b/bundles/org.simantics.scl.compiler/tests/org/simantics/scl/compiler/tests/scl/Collaz.scl
new file mode 100644
index 000000000..2e4552d0d
--- /dev/null
+++ b/bundles/org.simantics.scl.compiler/tests/org/simantics/scl/compiler/tests/scl/Collaz.scl
@@ -0,0 +1,16 @@
+import "Prelude"
+
+f x = if x `mod` 2 == 0
+      then x `div` 2
+      else 3*x + 1
+fd x = unfoldr (\x -> do
+                   r = f x 
+                   if x == 1
+                   then Nothing
+                   else Just (x,r)
+                ) x
+
+//main :: [Integer]                
+main = fd 7
+--
+[7, 22, 11, 34, 17, 52, 26, 13, 40, 20, 10, 5, 16, 8, 4, 2]
\ No newline at end of file