| Safe Haskell | Safe-Inferred |
|---|---|
| Language | Haskell2010 |
Foreign.LibFFI.Types
Description
Arguments and return types
Synopsis
- argCInt :: CInt -> Arg
- argCUInt :: CUInt -> Arg
- argCLong :: CLong -> Arg
- argCULong :: CULong -> Arg
- argInt8 :: Int8 -> Arg
- argInt16 :: Int16 -> Arg
- argInt32 :: Int32 -> Arg
- argInt64 :: Int64 -> Arg
- argWord8 :: Word8 -> Arg
- argWord16 :: Word16 -> Arg
- argWord32 :: Word32 -> Arg
- argWord64 :: Word64 -> Arg
- argCFloat :: CFloat -> Arg
- argCDouble :: CDouble -> Arg
- argCSize :: CSize -> Arg
- argCTime :: CTime -> Arg
- argCChar :: CChar -> Arg
- argCUChar :: CUChar -> Arg
- argCWchar :: CWchar -> Arg
- argPtr :: Ptr a -> Arg
- argFunPtr :: FunPtr a -> Arg
- argString :: String -> Arg
- argByteString :: ByteString -> Arg
- argConstByteString :: ByteString -> Arg
- retVoid :: RetType ()
- retCInt :: RetType CInt
- retCUInt :: RetType CUInt
- retCLong :: RetType CLong
- retCULong :: RetType CULong
- retInt8 :: RetType Int8
- retInt16 :: RetType Int16
- retInt32 :: RetType Int32
- retInt64 :: RetType Int64
- retWord8 :: RetType Word8
- retWord16 :: RetType Word16
- retWord32 :: RetType Word32
- retWord64 :: RetType Word64
- retCFloat :: RetType CFloat
- retCDouble :: RetType CDouble
- retCSize :: RetType CSize
- retCTime :: RetType CTime
- retCChar :: RetType CChar
- retCUChar :: RetType CUChar
- retCWchar :: RetType CWchar
- retPtr :: RetType a -> RetType (Ptr a)
- retFunPtr :: RetType a -> RetType (FunPtr a)
- retCString :: RetType CString
- retString :: RetType String
- retByteString :: RetType ByteString
- retMallocByteString :: RetType ByteString
Arguments
Integral types
Floating point types
argCDouble :: CDouble -> Arg Source #
Various other C types
Strings
argString :: String -> Arg Source #
The string argument is passed to C as a char * pointer, which is freed afterwards. The argument should not contain zero-bytes.
argByteString :: ByteString -> Arg Source #
Like argString, but for ByteString's.
argConstByteString :: ByteString -> Arg Source #
Like argByteString, but changing the string from C breaks referential transparency.
Return types
Integral types
Floating point types
Various other C types
Strings
retString :: RetType String Source #
Peek a String out of the returned char *. The char * is not freed.
retByteString :: RetType ByteString Source #
Like retString, but for ByteString's
retMallocByteString :: RetType ByteString Source #
Make a ByteString out of the returned char *. The char * will be free(3)ed when the ByteString is garbage collected.