[project @ 2002-03-04 17:25:36 by panne]

Export modifySTRef, too

diff --git a/Data/STRef.hs b/Data/STRef.hs
index 747d5ba..c60b299 100644 (file)
--- a/Data/STRef.hs
+++ b/Data/STRef.hs
@@ -8,7 +8,7 @@
 -- Stability   :  experimental
 -- Portability :  non-portable (requires non-portable module ST)
 --
--- $Id: STRef.hs,v 1.2 2001/07/03 11:37:50 simonmar Exp $
+-- $Id: STRef.hs,v 1.3 2002/03/04 17:25:36 panne Exp $
 --
 -- Mutable references in the ST monad.
 --
@@ -18,7 +18,8 @@ module Data.STRef (
        STRef,          -- abstract, instance Eq
        newSTRef,       -- :: a -> ST s (STRef s a)
        readSTRef,      -- :: STRef s a -> ST s a
-       writeSTRef      -- :: STRef s a -> a -> ST s ()
+       writeSTRef,     -- :: STRef s a -> a -> ST s ()
+       modifySTRef     -- :: STRef s a -> (a -> a) -> ST s ()
  ) where
 
 import Prelude