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|
{-# LANGUAGE CPP, ForeignFunctionInterface, MagicHash, TypeFamilies,
UnliftedFFITypes #-}
-- |
-- Module : Data.Double.Conversion.FFI
-- Copyright : (c) 2011 MailRank, Inc.
--
-- License : BSD-style
-- Maintainer : bos@serpentine.com
-- Stability : experimental
-- Portability : GHC
--
-- FFI interface support for converting between
-- floating point values and text.
module Data.Double.Conversion.Internal.FFI
(
ForeignFloating
, c_Text_ToExponential
, c_Text_ToExponentialFloat
, c_Text_ToFixed
, c_Text_ToFixedFloat
, c_Text_ToPrecision
, c_Text_ToPrecisionFloat
, c_Text_ToShortest
, c_Text_ToShortestFloat
, c_ToExponentialLength
, c_ToFixedLength
, c_ToPrecisionLength
, c_ToShortestLength
, c_ToExponential
, c_ToExponentialFloat
, c_ToFixed
, c_ToFixedFloat
, c_ToPrecision
, c_ToPrecisionFloat
, c_ToShortest
, c_ToShortestFloat
) where
import Data.Word (Word8)
#if __GLASGOW_HASKELL__ >= 703
import Foreign.C.Types (CDouble(CDouble), CFloat(CFloat), CInt(CInt))
#else
import Foreign.C.Types (CDouble, CFloat, CInt)
#endif
import Foreign.Ptr (Ptr)
import GHC.Prim (MutableByteArray#)
type family ForeignFloating h :: *
type instance ForeignFloating Double = CDouble
type instance ForeignFloating Float = CFloat
foreign import ccall unsafe "hs-double-conversion.h _hs_ToShortestLength"
c_ToShortestLength :: CInt
foreign import ccall unsafe "hs-double-conversion.h _hs_ToShortest"
c_ToShortest :: CDouble -> Ptr Word8 -> IO CInt
foreign import ccall unsafe "hs-double-conversion.h _hs_ToShortestFloat"
c_ToShortestFloat :: CFloat -> Ptr Word8 -> IO CInt
foreign import ccall unsafe "hs-double-conversion.h _hs_ToFixedLength"
c_ToFixedLength :: CInt
foreign import ccall unsafe "hs-double-conversion.h _hs_ToFixed"
c_ToFixed :: CDouble -> Ptr Word8 -> CInt -> IO CInt
foreign import ccall unsafe "hs-double-conversion.h _hs_ToFixedFloat"
c_ToFixedFloat :: CFloat -> Ptr Word8 -> CInt -> IO CInt
foreign import ccall unsafe "hs-double-conversion.h _hs_ToExponentialLength"
c_ToExponentialLength :: CInt
foreign import ccall unsafe "hs-double-conversion.h _hs_ToExponential"
c_ToExponential :: CDouble -> Ptr Word8 -> CInt -> IO CInt
foreign import ccall unsafe "hs-double-conversion.h _hs_ToExponentialFloat"
c_ToExponentialFloat :: CFloat -> Ptr Word8 -> CInt -> IO CInt
foreign import ccall unsafe "hs-double-conversion.h _hs_ToPrecisionLength"
c_ToPrecisionLength :: CInt
foreign import ccall unsafe "hs-double-conversion.h _hs_ToPrecision"
c_ToPrecision :: CDouble -> Ptr Word8 -> CInt -> IO CInt
foreign import ccall unsafe "hs-double-conversion.h _hs_ToPrecisionFloat"
c_ToPrecisionFloat :: CFloat -> Ptr Word8 -> CInt -> IO CInt
#if MIN_VERSION_text(2,0,0)
foreign import ccall unsafe "hs-double-conversion.h _hs_ToShortest"
c_Text_ToShortest :: CDouble -> MutableByteArray# s -> IO CInt
foreign import ccall unsafe "hs-double-conversion.h _hs_ToShortestFloat"
c_Text_ToShortestFloat :: CFloat -> MutableByteArray# s -> IO CInt
foreign import ccall unsafe "hs-double-conversion.h _hs_ToFixed"
c_Text_ToFixed :: CDouble -> MutableByteArray# s -> CInt -> IO CInt
foreign import ccall unsafe "hs-double-conversion.h _hs_ToFixedFloat"
c_Text_ToFixedFloat :: CFloat -> MutableByteArray# s-> CInt -> IO CInt
foreign import ccall unsafe "hs-double-conversion.h _hs_ToExponential"
c_Text_ToExponential :: CDouble -> MutableByteArray# s -> CInt -> IO CInt
foreign import ccall unsafe "hs-double-conversion.h _hs_ToExponentialFloat"
c_Text_ToExponentialFloat :: CFloat -> MutableByteArray# s -> CInt -> IO CInt
foreign import ccall unsafe "hs-double-conversion.h _hs_ToPrecision"
c_Text_ToPrecision :: CDouble -> MutableByteArray# s -> CInt -> IO CInt
foreign import ccall unsafe "hs-double-conversion.h _hs_ToPrecisionFloat"
c_Text_ToPrecisionFloat :: CFloat -> MutableByteArray# s -> CInt -> IO CInt
#else
foreign import ccall unsafe "hs-double-conversion.h _hs_Text_ToShortest"
c_Text_ToShortest :: CDouble -> MutableByteArray# s -> IO CInt
foreign import ccall unsafe "hs-double-conversion.h _hs_Text_ToShortestFloat"
c_Text_ToShortestFloat :: CFloat -> MutableByteArray# s -> IO CInt
foreign import ccall unsafe "hs-double-conversion.h _hs_Text_ToFixed"
c_Text_ToFixed :: CDouble -> MutableByteArray# s -> CInt -> IO CInt
foreign import ccall unsafe "hs-double-conversion.h _hs_Text_ToFixedFloat"
c_Text_ToFixedFloat :: CFloat -> MutableByteArray# s -> CInt -> IO CInt
foreign import ccall unsafe "hs-double-conversion.h _hs_Text_ToExponential"
c_Text_ToExponential :: CDouble -> MutableByteArray# s -> CInt -> IO CInt
foreign import ccall unsafe "hs-double-conversion.h _hs_Text_ToExponentialFloat"
c_Text_ToExponentialFloat :: CFloat -> MutableByteArray# s -> CInt -> IO CInt
foreign import ccall unsafe "hs-double-conversion.h _hs_Text_ToPrecision"
c_Text_ToPrecision :: CDouble -> MutableByteArray# s -> CInt -> IO CInt
foreign import ccall unsafe "hs-double-conversion.h _hs_Text_ToPrecisionFloat"
c_Text_ToPrecisionFloat :: CFloat -> MutableByteArray# s -> CInt -> IO CInt
#endif
|
