half-0.2.2.1: Half-precision floating-point

Copyright(C) 2014 Edward Kmett
LicenseBSD-style (see the file LICENSE)
MaintainerEdward Kmett <ekmett@gmail.com>
Stabilityexperimental
PortabilityPatternSynonyms
Safe HaskellNone
LanguageHaskell98

Numeric.Half

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

Documentation

newtype Half

Constructors

Half 

Fields

getHalf :: CUShort
 

Instances

isZero :: Half -> Bool

Is this Half equal to 0?

fromHalf :: Half -> Float

Convert a Half to a Float while preserving NaN

toHalf :: Float -> Half

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

pattern POS_INF :: Half

Positive infinity

pattern NEG_INF :: Half

Negative infinity

pattern QNaN :: Half

Quiet NaN

pattern SNaN :: Half

Signalling NaN

pattern HALF_MIN :: Half

Smallest positive half

pattern HALF_NRM_MIN :: Half

Smallest positive normalized half

pattern HALF_MAX :: Half

Largest positive half

pattern HALF_EPSILON :: Half

Smallest positive e for which half (1.0 + e) != half (1.0)

pattern HALF_DIG :: () => (Eq a, Num a) => a

Number of base 10 digits that can be represented without change

pattern HALF_MIN_10_EXP :: () => (Eq a, Num a) => a

pattern HALF_MAX_10_EXP :: () => (Eq a, Num a) => a