From: ross <unknown>
Date: Wed, 25 Sep 2002 22:49:17 +0000 (+0000)
Subject: [project @ 2002-09-25 22:49:17 by ross]
X-Git-Tag: nhc98-1-18-release~841
X-Git-Url: http://git.megacz.com/?a=commitdiff_plain;h=caac6315eca89a77d779fcf9d14191ece09ce982;p=haskell-directory.git

[project @ 2002-09-25 22:49:17 by ross]
Hugs only (but being considered for the ffi spec): added finalizerFree,
a pointer to a foreign function equivalent to free, for use as a finalizer.
---

diff --git a/Foreign/Marshal/Alloc.hs b/Foreign/Marshal/Alloc.hs
index 25e5b78..ce167b5 100644
--- a/Foreign/Marshal/Alloc.hs
+++ b/Foreign/Marshal/Alloc.hs
@@ -24,11 +24,16 @@ module Foreign.Marshal.Alloc (
   realloc,      -- :: Storable b => Ptr a        -> IO (Ptr b)
   reallocBytes, -- ::		    Ptr a -> Int -> IO (Ptr a)
 
+#ifdef __HUGS__
+  free,         -- :: Ptr a -> IO ()
+  finalizerFree -- :: FunPtr (Ptr a -> IO ())
+#else
   free          -- :: Ptr a -> IO ()
+#endif
 ) where
 
 import Data.Maybe
-import Foreign.Ptr	 	( Ptr, nullPtr )
+import Foreign.Ptr	 	( Ptr, nullPtr, FunPtr )
 import Foreign.C.TypesISO 	( CSize )
 import Foreign.Storable  	( Storable(sizeOf) )
 
@@ -145,3 +150,9 @@ failWhenNULL name f = do
 foreign import ccall unsafe "stdlib.h malloc"  _malloc  ::          CSize -> IO (Ptr a)
 foreign import ccall unsafe "stdlib.h realloc" _realloc :: Ptr a -> CSize -> IO (Ptr b)
 foreign import ccall unsafe "stdlib.h free"    _free    :: Ptr a -> IO ()
+#ifdef __HUGS__
+-- |A pointer to a foreign function equivalent to @free@, which may be used
+-- as a finalizer for storage allocated with @malloc@ or @mallocBytes@.
+foreign import ccall unsafe "stdlib.h &free"
+			finalizerFree :: FunPtr (Ptr a -> IO ())
+#endif