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Foreign.Marshal.Alloc | Portability | portable | Stability | provisional | Maintainer | ffi@haskell.org |
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Contents |
- Allocation
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Description |
Marshalling support: basic routines for memory allocation
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Synopsis |
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Allocation |
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malloc :: (Storable a) => IO (Ptr a) |
Allocate space for storable type. The size of the area allocated
is determined by the sizeOf method from the instance of
Storable for the appropriate type.
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mallocBytes :: Int -> IO (Ptr a) |
Allocate given number of bytes of storage, equivalent to C's malloc().
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alloca :: (Storable a) => (Ptr a -> IO b) -> IO b |
Temporarily allocate space for a storable type. - the pointer passed as an argument to the function must not escape from
this function; in other words, in alloca f the allocated storage must
not be used after f returns
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allocaBytes :: Int -> (Ptr a -> IO b) -> IO b |
Temporarily allocate the given number of bytes of storage. - the pointer passed as an argument to the function must not escape from
this function; in other words, in allocaBytes n f the allocated storage
must not be used after f returns
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realloc :: (Storable b) => Ptr a -> IO (Ptr b) |
Adjust a malloc'ed storage area to the given size of the required type
(corresponds to C's realloc()).
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reallocBytes :: Ptr a -> Int -> IO (Ptr a) |
Adjust a malloc'ed storage area to the given size (equivalent to
C's realloc()).
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free :: Ptr a -> IO () |
Free malloc'ed storage (equivalent to
C's free())
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finalizerFree :: FinalizerPtr a |
A pointer to a foreign function equivalent to free, which may be used
as a finalizer for storage allocated with malloc or mallocBytes. |
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Produced by Haddock version 0.4 |