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[project @ 2002-05-09 13:16:29 by simonmar]
[ghc-base.git]
/
Data
/
STRef.hs
diff --git
a/Data/STRef.hs
b/Data/STRef.hs
index
747d5ba
..
2331ef9
100644
(file)
--- a/
Data/STRef.hs
+++ b/
Data/STRef.hs
@@
-1,15
+1,13
@@
-----------------------------------------------------------------------------
-----------------------------------------------------------------------------
---
+-- |
-- Module : Data.STRef
-- Copyright : (c) The University of Glasgow 2001
-- Module : Data.STRef
-- Copyright : (c) The University of Glasgow 2001
--- License : BSD-style (see the file libraries/core/LICENSE)
+-- License : BSD-style (see the file libraries/base/LICENSE)
--
-- Maintainer : libraries@haskell.org
-- Stability : experimental
-- Portability : non-portable (requires non-portable module ST)
--
--
-- Maintainer : libraries@haskell.org
-- Stability : experimental
-- Portability : non-portable (requires non-portable module ST)
--
--- $Id: STRef.hs,v 1.2 2001/07/03 11:37:50 simonmar Exp $
---
-- Mutable references in the ST monad.
--
-----------------------------------------------------------------------------
-- Mutable references in the ST monad.
--
-----------------------------------------------------------------------------
@@
-18,7
+16,8
@@
module Data.STRef (
STRef, -- abstract, instance Eq
newSTRef, -- :: a -> ST s (STRef s a)
readSTRef, -- :: STRef s a -> ST s a
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
) where
import Prelude