Copyright	Will Thompson Iñaki García Etxebarria and Jonas Platte
License	LGPL-2.1
Maintainer	Iñaki García Etxebarria (garetxe@gmail.com)
Safe Haskell	None
Language	Haskell2010

GI.GLib.Unions.DoubleIEEE754

Contents

Exported types
Properties
- vDouble

Description

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.

Synopsis

newtype DoubleIEEE754 = DoubleIEEE754 (ManagedPtr DoubleIEEE754)
newZeroDoubleIEEE754 :: MonadIO m => m DoubleIEEE754
noDoubleIEEE754 :: Maybe DoubleIEEE754
getDoubleIEEE754VDouble :: MonadIO m => DoubleIEEE754 -> m Double
setDoubleIEEE754VDouble :: MonadIO m => DoubleIEEE754 -> Double -> m ()

Exported types

newtype DoubleIEEE754 Source #

Memory-managed wrapper type.

Constructors

DoubleIEEE754 (ManagedPtr DoubleIEEE754)

Instances

WrappedPtr DoubleIEEE754 Source #
Instance details Defined in GI.GLib.Unions.DoubleIEEE754 Methods wrappedPtrCalloc :: IO (Ptr DoubleIEEE754) # wrappedPtrCopy :: DoubleIEEE754 -> IO DoubleIEEE754 # wrappedPtrFree :: Maybe (FunPtr (Ptr DoubleIEEE754 -> IO ())) #
tag ~ AttrSet => Constructible DoubleIEEE754 tag Source #
Instance details Defined in GI.GLib.Unions.DoubleIEEE754 Methods new :: MonadIO m => (ManagedPtr DoubleIEEE754 -> DoubleIEEE754) -> [AttrOp DoubleIEEE754 tag] -> m DoubleIEEE754 #

newZeroDoubleIEEE754 :: MonadIO m => m DoubleIEEE754 Source #

Construct a DoubleIEEE754 struct initialized to zero.

noDoubleIEEE754 :: Maybe DoubleIEEE754 Source #

A convenience alias for Nothing :: Maybe DoubleIEEE754.

Properties

vDouble

the double value

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

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 () Source #

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

set doubleIEEE754 [ #vDouble := value ]