Copyright	(C) 2014-15 Edward Kmett
License	BSD-style (see the file LICENSE)
Maintainer	Edward Kmett <ekmett@gmail.com>
Stability	experimental
Portability	non-portable
Safe Haskell	Safe-Inferred
Language	Haskell98

Numeric.Fixed

Description

Fixed precision arithmetic. This format is the same format used by OpenGL ES 1's GLfixed data type:

One sign bit, 15 bits to the left of the decimal place and 16 bits to the right packed into a 32-bit integer.

Synopsis

newtype Fixed = Fixed {
- getFixed :: CInt
}
fromFixed :: Fixed -> Double
toFixed :: Double -> Fixed

Documentation

newtype Fixed Source #

A signed 2s complement 15.16 scale fixed precision number

Constructors

Fixed
Fields getFixed :: CInt

Instances

Instances details

Storable Fixed Source #
Instance details Defined in Numeric.Fixed Methods sizeOf :: Fixed -> Int alignment :: Fixed -> Int peekElemOff :: Ptr Fixed -> Int -> IO Fixed pokeElemOff :: Ptr Fixed -> Int -> Fixed -> IO () peekByteOff :: Ptr b -> Int -> IO Fixed pokeByteOff :: Ptr b -> Int -> Fixed -> IO () peek :: Ptr Fixed -> IO Fixed poke :: Ptr Fixed -> Fixed -> IO ()
Bounded Fixed Source #
Instance details Defined in Numeric.Fixed Methods minBound :: Fixed maxBound :: Fixed
Enum Fixed Source #
Instance details Defined in Numeric.Fixed Methods succ :: Fixed -> Fixed pred :: Fixed -> Fixed toEnum :: Int -> Fixed fromEnum :: Fixed -> Int enumFrom :: Fixed -> [Fixed] enumFromThen :: Fixed -> Fixed -> [Fixed] enumFromTo :: Fixed -> Fixed -> [Fixed] enumFromThenTo :: Fixed -> Fixed -> Fixed -> [Fixed]
Floating Fixed Source #
Instance details Defined in Numeric.Fixed Methods pi :: Fixed exp :: Fixed -> Fixed log :: Fixed -> Fixed sqrt :: Fixed -> Fixed (**) :: Fixed -> Fixed -> Fixed logBase :: Fixed -> Fixed -> Fixed sin :: Fixed -> Fixed cos :: Fixed -> Fixed tan :: Fixed -> Fixed asin :: Fixed -> Fixed acos :: Fixed -> Fixed atan :: Fixed -> Fixed sinh :: Fixed -> Fixed cosh :: Fixed -> Fixed tanh :: Fixed -> Fixed asinh :: Fixed -> Fixed acosh :: Fixed -> Fixed atanh :: Fixed -> Fixed log1p :: Fixed -> Fixed expm1 :: Fixed -> Fixed log1pexp :: Fixed -> Fixed log1mexp :: Fixed -> Fixed
RealFloat Fixed Source #
Instance details Defined in Numeric.Fixed Methods floatRadix :: Fixed -> Integer floatDigits :: Fixed -> Int floatRange :: Fixed -> (Int, Int) decodeFloat :: Fixed -> (Integer, Int) encodeFloat :: Integer -> Int -> Fixed exponent :: Fixed -> Int significand :: Fixed -> Fixed scaleFloat :: Int -> Fixed -> Fixed isNaN :: Fixed -> Bool isInfinite :: Fixed -> Bool isDenormalized :: Fixed -> Bool isNegativeZero :: Fixed -> Bool isIEEE :: Fixed -> Bool atan2 :: Fixed -> Fixed -> Fixed
Num Fixed Source #
Instance details Defined in Numeric.Fixed Methods (+) :: Fixed -> Fixed -> Fixed (-) :: Fixed -> Fixed -> Fixed (*) :: Fixed -> Fixed -> Fixed negate :: Fixed -> Fixed abs :: Fixed -> Fixed signum :: Fixed -> Fixed fromInteger :: Integer -> Fixed
Fractional Fixed Source #
Instance details Defined in Numeric.Fixed Methods (/) :: Fixed -> Fixed -> Fixed recip :: Fixed -> Fixed fromRational :: Rational -> Fixed
Real Fixed Source #
Instance details Defined in Numeric.Fixed Methods toRational :: Fixed -> Rational
RealFrac Fixed Source #
Instance details Defined in Numeric.Fixed Methods properFraction :: Integral b => Fixed -> (b, Fixed) truncate :: Integral b => Fixed -> b round :: Integral b => Fixed -> b ceiling :: Integral b => Fixed -> b floor :: Integral b => Fixed -> b
Show Fixed Source #
Instance details Defined in Numeric.Fixed Methods showsPrec :: Int -> Fixed -> ShowS show :: Fixed -> String showList :: [Fixed] -> ShowS
Eq Fixed Source #
Instance details Defined in Numeric.Fixed Methods (==) :: Fixed -> Fixed -> Bool (/=) :: Fixed -> Fixed -> Bool
Ord Fixed Source #
Instance details Defined in Numeric.Fixed Methods compare :: Fixed -> Fixed -> Ordering (<) :: Fixed -> Fixed -> Bool (<=) :: Fixed -> Fixed -> Bool (>) :: Fixed -> Fixed -> Bool (>=) :: Fixed -> Fixed -> Bool max :: Fixed -> Fixed -> Fixed min :: Fixed -> Fixed -> Fixed

fromFixed :: Fixed -> Double Source #

Convert from a Fixed precision value to a Double

toFixed :: Double -> Fixed Source #

Convert from a Double to a Fixed precision value