X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=Data%2FEither.hs;h=fd6651f4cce86ff02451f1803c2b1d71174e209b;hb=d505d74452a79d349876bb31bf0a7003f3f203a0;hp=6af488fc9fb8a0189efe009cb5f7c12a9e24f140;hpb=0a7a4a16e555a77afec5501a75d9fbbb9fc35730;p=ghc-base.git

diff --git a/Data/Either.hs b/Data/Either.hs
index 6af488f..fd6651f 100644
--- a/Data/Either.hs
+++ b/Data/Either.hs
@@ -79,8 +79,8 @@ rights x = [a | Right a <- x]
 partitionEithers :: [Either a b] -> ([a],[b])
 partitionEithers = foldr (either left right) ([],[])
  where
-  left  a (l, r) = (a:l, r)
-  right a (l, r) = (l, a:r)
+  left  a ~(l, r) = (a:l, r)
+  right a ~(l, r) = (l, a:r)
 
 {-
 {--------------------------------------------------------------------