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-rw-r--r--libraries/base/Data/Foldable.hs2
-rw-r--r--libraries/base/changelog.md3
2 files changed, 5 insertions, 0 deletions
diff --git a/libraries/base/Data/Foldable.hs b/libraries/base/Data/Foldable.hs
index f6f787b628..b839106c93 100644
--- a/libraries/base/Data/Foldable.hs
+++ b/libraries/base/Data/Foldable.hs
@@ -71,6 +71,8 @@ import GHC.Arr ( Array(..), Ix(..), elems )
import GHC.Base hiding ( foldr )
import GHC.Num ( Num(..) )
+infix 4 `elem`, `notElem`
+
-- | Data structures that can be folded.
--
-- Minimal complete definition: 'foldMap' or 'foldr'.
diff --git a/libraries/base/changelog.md b/libraries/base/changelog.md
index 6f3c8cc754..1dbada01ba 100644
--- a/libraries/base/changelog.md
+++ b/libraries/base/changelog.md
@@ -29,6 +29,9 @@
* Add `Data.List.uncons` list destructor (#9550)
+ * Set fixity for `Data.Foldable.{elem,notElem}` to match the
+ conventional one set for `Data.List.{elem,notElem}` (#9610)
+
## 4.7.0.1 *Jul 2014*
* Bundled with GHC 7.8.3