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|
{-# LANGUAGE CPP, ForeignFunctionInterface, MagicHash, 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 double precision
-- floating point values and text.
module Data.Double.Conversion.FFI
(
c_Text_ToExponential
, c_Text_ToFixed
, c_Text_ToPrecision
, c_Text_ToShortest
, c_ToExponentialLength
, c_ToFixedLength
, c_ToPrecisionLength
, c_ToShortestLength
, c_ToExponential
, c_ToFixed
, c_ToPrecision
, c_ToShortest
) where
import Data.Word (Word8)
#if __GLASGOW_HASKELL__ >= 703
import Foreign.C.Types (CDouble(CDouble), CInt(CInt))
#else
import Foreign.C.Types (CDouble, CInt)
#endif
import Foreign.Ptr (Ptr)
import GHC.Prim (MutableByteArray#)
foreign import ccall unsafe "hs-double-conversion.h _hs_ToShortestLength"
c_ToShortestLength :: CInt
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_ToShortest"
c_ToShortest :: CDouble -> 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_Text_ToFixed"
c_Text_ToFixed :: CDouble -> MutableByteArray# s -> CInt -> IO 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_ToExponentialLength"
c_ToExponentialLength :: 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_ToExponential"
c_ToExponential :: CDouble -> 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_Text_ToPrecision"
c_Text_ToPrecision :: CDouble -> MutableByteArray# s -> CInt -> IO CInt
foreign import ccall unsafe "hs-double-conversion.h _hs_ToPrecision"
c_ToPrecision :: CDouble -> Ptr Word8 -> CInt -> IO CInt
|
