Copyright	(C) 2014 Edward Kmett
License	BSD-style (see the file LICENSE)
Maintainer	Edward Kmett <ekmett@gmail.com>
Stability	experimental
Portability	PatternSynonyms
Safe Haskell	Trustworthy
Language	Haskell2010

Numeric.Half.Internal

Contents

Patterns
Pure conversions

Description

Half-precision floating-point values. These arise commonly in GPU work and it is useful to be able to compute them and compute with them on the CPU as well.

Synopsis

newtype Half = Half {
- getHalf :: CUShort
}
isZero :: Half -> Bool
fromHalf :: Half -> Float
toHalf :: Float -> Half
pattern POS_INF :: Half
pattern NEG_INF :: Half
pattern QNaN :: Half
pattern SNaN :: Half
pattern HALF_MIN :: Half
pattern HALF_NRM_MIN :: Half
pattern HALF_MAX :: Half
pattern HALF_EPSILON :: Half
pattern HALF_DIG :: (Eq a, Num a) => a
pattern HALF_MIN_10_EXP :: (Eq a, Num a) => a
pattern HALF_MAX_10_EXP :: (Eq a, Num a) => a
pure_floatToHalf :: Float -> Half
pure_halfToFloat :: Half -> Float

Documentation

newtype Half Source #

A half-precision floating point value

Constructors

Half
Fields getHalf :: CUShort

Instances

Instances details

Storable Half Source #

Instance details

Defined in Numeric.Half.Internal

Methods

sizeOf :: Half -> Int

alignment :: Half -> Int

peekElemOff :: Ptr Half -> Int -> IO Half

pokeElemOff :: Ptr Half -> Int -> Half -> IO ()

peekByteOff :: Ptr b -> Int -> IO Half

pokeByteOff :: Ptr b -> Int -> Half -> IO ()

peek :: Ptr Half -> IO Half

poke :: Ptr Half -> Half -> IO ()

Floating Half Source #

Instance details

Defined in Numeric.Half.Internal

Methods

pi :: Half

exp :: Half -> Half

log :: Half -> Half

sqrt :: Half -> Half

(**) :: Half -> Half -> Half

logBase :: Half -> Half -> Half

sin :: Half -> Half

cos :: Half -> Half

tan :: Half -> Half

asin :: Half -> Half

acos :: Half -> Half

atan :: Half -> Half

sinh :: Half -> Half

cosh :: Half -> Half

tanh :: Half -> Half

asinh :: Half -> Half

acosh :: Half -> Half

atanh :: Half -> Half

log1p :: Half -> Half

expm1 :: Half -> Half

log1pexp :: Half -> Half

log1mexp :: Half -> Half

RealFloat Half Source #

Instance details

Defined in Numeric.Half.Internal

Methods

floatRadix :: Half -> Integer

floatDigits :: Half -> Int

floatRange :: Half -> (Int, Int)

decodeFloat :: Half -> (Integer, Int)

encodeFloat :: Integer -> Int -> Half

exponent :: Half -> Int

significand :: Half -> Half

scaleFloat :: Int -> Half -> Half

isNaN :: Half -> Bool

isInfinite :: Half -> Bool

isDenormalized :: Half -> Bool

isNegativeZero :: Half -> Bool

isIEEE :: Half -> Bool

atan2 :: Half -> Half -> Half

Generic Half Source #

Instance details

Defined in Numeric.Half.Internal

Associated Types

type Rep Half
Instance details Defined in Numeric.Half.Internal type Rep Half = D1 ('MetaData "Half" "Numeric.Half.Internal" "half-0.3.2-HoEbd3b3bksKa6OEJhWBJq" 'True) (C1 ('MetaCons "Half" 'PrefixI 'True) (S1 ('MetaSel ('Just "getHalf") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 CUShort)))

Methods

from :: Half -> Rep Half x

to :: Rep Half x -> Half

Num Half Source #

Instance details

Defined in Numeric.Half.Internal

Methods

(+) :: Half -> Half -> Half

(-) :: Half -> Half -> Half

(*) :: Half -> Half -> Half

negate :: Half -> Half

abs :: Half -> Half

signum :: Half -> Half

fromInteger :: Integer -> Half

Read Half Source #

Instance details

Defined in Numeric.Half.Internal

Methods

readsPrec :: Int -> ReadS Half

readList :: ReadS [Half]

readPrec :: ReadPrec Half

readListPrec :: ReadPrec [Half]

Fractional Half Source #

Instance details

Defined in Numeric.Half.Internal

Methods

(/) :: Half -> Half -> Half

recip :: Half -> Half

fromRational :: Rational -> Half

Real Half Source #

Instance details

Defined in Numeric.Half.Internal

Methods

toRational :: Half -> Rational

RealFrac Half Source #

Instance details

Defined in Numeric.Half.Internal

Methods

properFraction :: Integral b => Half -> (b, Half)

truncate :: Integral b => Half -> b

round :: Integral b => Half -> b

ceiling :: Integral b => Half -> b

floor :: Integral b => Half -> b

Show Half Source #

Instance details

Defined in Numeric.Half.Internal

Methods

showsPrec :: Int -> Half -> ShowS

show :: Half -> String

showList :: [Half] -> ShowS

Binary Half Source #

Instance details

Defined in Numeric.Half.Internal

Methods

put :: Half -> Put

get :: Get Half

putList :: [Half] -> Put

NFData Half Source #

Instance details

Defined in Numeric.Half.Internal

Methods

rnf :: Half -> ()

Eq Half Source #

Instance details

Defined in Numeric.Half.Internal

Methods

(==) :: Half -> Half -> Bool

(/=) :: Half -> Half -> Bool

Ord Half Source #

Instance details

Defined in Numeric.Half.Internal

Methods

compare :: Half -> Half -> Ordering

(<) :: Half -> Half -> Bool

(<=) :: Half -> Half -> Bool

(>) :: Half -> Half -> Bool

(>=) :: Half -> Half -> Bool

max :: Half -> Half -> Half

min :: Half -> Half -> Half

Lift Half Source #

Instance details

Defined in Numeric.Half.Internal

Methods

lift :: Quote m => Half -> m Exp

liftTyped :: forall (m :: Type -> Type). Quote m => Half -> Code m Half

type Rep Half Source #

Instance details

Defined in Numeric.Half.Internal

type Rep Half = D1 ('MetaData "Half" "Numeric.Half.Internal" "half-0.3.2-HoEbd3b3bksKa6OEJhWBJq" 'True) (C1 ('MetaCons "Half" 'PrefixI 'True) (S1 ('MetaSel ('Just "getHalf") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 CUShort)))

isZero :: Half -> Bool Source #

Is this Half equal to 0?

fromHalf :: Half -> Float Source #

Convert a Half to a Float while preserving NaN

toHalf :: Float -> Half Source #

Convert a Float to a Half with proper rounding, while preserving NaN and dealing appropriately with infinity