GI.GLib.Unions.DoubleIEEE754

The FloatIEEE754 and DoubleIEEE754 unions are used to access the sign, mantissa and exponent of IEEE floats and doubles. These unions are defined as appropriate for a given platform. IEEE floats and doubles are supported (used for storage) by at least Intel, PPC and Sparc.

Exported types

newtype DoubleIEEE754

Memory-managed wrapper type.

Constructors

DoubleIEEE754 (ManagedPtr DoubleIEEE754)

Instances

WrappedPtr DoubleIEEE754

Defined in GI.GLib.Unions.DoubleIEEE754

Methods

wrappedPtrCalloc :: IO (Ptr DoubleIEEE754)

wrappedPtrCopy :: DoubleIEEE754 -> IO DoubleIEEE754

wrappedPtrFree :: Maybe (GDestroyNotify DoubleIEEE754)

tag ~ AttrSet => Constructible DoubleIEEE754 tag

Defined in GI.GLib.Unions.DoubleIEEE754

Methods

new :: MonadIO m => (ManagedPtr DoubleIEEE754 -> DoubleIEEE754) -> [AttrOp DoubleIEEE754 tag] -> m DoubleIEEE754

newZeroDoubleIEEE754 :: MonadIO m => m DoubleIEEE754

Construct a DoubleIEEE754 struct initialized to zero.

noDoubleIEEE754 :: Maybe DoubleIEEE754

A convenience alias for Nothing :: Maybe DoubleIEEE754.

Properties

vDouble

the double value

getDoubleIEEE754VDouble :: MonadIO m => DoubleIEEE754 -> m Double

Get the value of the “v_double” field. When overloading is enabled, this is equivalent to

get doubleIEEE754 #vDouble

setDoubleIEEE754VDouble :: MonadIO m => DoubleIEEE754 -> Double -> m ()

Set the value of the “v_double” field. When overloading is enabled, this is equivalent to

set doubleIEEE754 [ #vDouble := value ]