{- | Copyright : Will Thompson, Iñaki García Etxebarria and Jonas Platte License : LGPL-2.1 Maintainer : Iñaki García Etxebarria (garetxe@gmail.com) -} module GI.GLib.Unions.DoubleIEEE754 ( -- * Exported types DoubleIEEE754(..) , noDoubleIEEE754 , -- * Properties -- ** VDouble doubleIEEE754ReadVDouble , ) where import Prelude () import Data.GI.Base.ShortPrelude import qualified Data.Text as T import qualified Data.ByteString.Char8 as B import qualified Data.Map as Map import GI.GLib.Types import GI.GLib.Callbacks newtype DoubleIEEE754 = DoubleIEEE754 (ForeignPtr DoubleIEEE754) noDoubleIEEE754 :: Maybe DoubleIEEE754 noDoubleIEEE754 = Nothing doubleIEEE754ReadVDouble :: DoubleIEEE754 -> IO Double doubleIEEE754ReadVDouble s = withManagedPtr s $ \ptr -> do val <- peek (ptr `plusPtr` 0) :: IO CDouble let val' = realToFrac val return val'