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%2FScanl.scl;fp=bundles%2Forg.simantics.scl.compiler%2Ftests%2Forg%2Fsimantics%2Fscl%2Fcompiler%2Ftests%2Fscl%2FScanl.scl;h=67821ddef29a19dd5898be1b4e2a24954eee96fe;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/Scanl.scl b/bundles/org.simantics.scl.compiler/tests/org/simantics/scl/compiler/tests/scl/Scanl.scl new file mode 100644 index 000000000..67821ddef --- /dev/null +++ b/bundles/org.simantics.scl.compiler/tests/org/simantics/scl/compiler/tests/scl/Scanl.scl @@ -0,0 +1,14 @@ +import "Prelude" hiding (scanl) + +scanl :: (b -> a -> b) -> b -> [a] -> [b] +scanl f initial l = build (loop initial 0) + where + len = length l + loop cur i accum cons = let nl = cons accum cur + in if i==len + then nl + else loop (f cur (l!i)) (i+1) nl cons + +main = scanl (+) 0 [1,2,3] +-- +[0, 1, 3, 6] \ No newline at end of file