Modulepcg-random-0.1.4.0Haskell2010

System.Random.PCG.Class

Classes for working with random numbers along with utility functions. In a future release this module may disappear and use another module for this functionality.

Contents

Classes
Type restricted versions
uniform
uniformR
uniformB
Utilities

Synopsis

class Generator
class Variate
value uniformW8
value uniformW16
value uniformW32
value uniformW64
value uniformI8
value uniformI16
value uniformI32
value uniformI64
value uniformF
value uniformD
value uniformBool
value uniformRW8
value uniformRW16
value uniformRW32
value uniformRW64
value uniformRI8
value uniformRI16
value uniformRI32
value uniformRI64
value uniformRF
value uniformRD
value uniformRBool
value uniformBW8
value uniformBW16
value uniformBW32
value uniformBW64
value uniformBI8
value uniformBI16
value uniformBI32
value uniformBI64
value uniformBF
value uniformBD
value uniformBBool
family Unsigned
value wordsTo64Bit
value wordToBool
value wordToFloat
value wordsToDouble
value sysRandom

Packagepcg-random-0.1.4.0
Exports41
LanguageHaskell2010
LicenceBSD-3-Clause
SourceClass.hs

Classes

classclass Monad m => Generator g (m :: Type -> Type) where

Methods

uniform1 :: (Word32 -> a) -> g -> m a
uniform2 :: (Word32 -> Word32 -> a) -> g -> m a
uniform1B :: Integral a => (Word32 -> a) -> Word32 -> g -> m a

Instances6Generator

Generator Gen IODefined in pcg-random-0.1.4.0 · System.Random.PCG.Unique
(PrimMonad m, s ~ PrimState m) => Generator (Gen s) mDefined in pcg-random-0.1.4.0 · System.Random.PCG
(PrimMonad m, s ~ PrimState m) => Generator (Gen s) mDefined in pcg-random-0.1.4.0 · System.Random.PCG.Fast
(PrimMonad m, s ~ PrimState m) => Generator (Gen s) mDefined in pcg-random-0.1.4.0 · System.Random.PCG.Fast.Pure
(PrimMonad m, s ~ PrimState m) => Generator (Gen s) mDefined in pcg-random-0.1.4.0 · System.Random.PCG.Pure
(PrimMonad m, s ~ PrimState m) => Generator (Gen s) mDefined in pcg-random-0.1.4.0 · System.Random.PCG.Single

classclass Variate a where

Methods

uniform :: Generator g m => g -> m a
Generate a uniformly distributed random vairate.
- Use entire range for integral types.
- Use (0,1] range for floating types.
uniformR :: Generator g m => (a, a) -> g -> m a
Generate a uniformly distributed random vairate in the given range.
- Use inclusive range for integral types.
- Use (a,b] range for floating types.
uniformB :: Generator g m => a -> g -> m a
Generate a uniformly distributed random vairate in the range [0,b). For integral types the bound must be less than the max bound of Word32 (4294967295). Behaviour is undefined for negative bounds.

Instances16Variate, …

Variate Int16Defined in pcg-random-0.1.4.0 · System.Random.PCG.Class
Variate Int32Defined in pcg-random-0.1.4.0 · System.Random.PCG.Class
Variate Int64Defined in pcg-random-0.1.4.0 · System.Random.PCG.Class
Variate Int8Defined in pcg-random-0.1.4.0 · System.Random.PCG.Class
Variate BoolDefined in pcg-random-0.1.4.0 · System.Random.PCG.Class
Variate DoubleDefined in pcg-random-0.1.4.0 · System.Random.PCG.Class
Variate FloatDefined in pcg-random-0.1.4.0 · System.Random.PCG.Class
Variate IntDefined in pcg-random-0.1.4.0 · System.Random.PCG.Class
Variate WordDefined in pcg-random-0.1.4.0 · System.Random.PCG.Class
Variate Word16Defined in pcg-random-0.1.4.0 · System.Random.PCG.Class
Variate Word32Defined in pcg-random-0.1.4.0 · System.Random.PCG.Class
Variate Word64Defined in pcg-random-0.1.4.0 · System.Random.PCG.Class
Variate Word8Defined in pcg-random-0.1.4.0 · System.Random.PCG.Class
(Variate a, Variate b) => Variate (a, b)Defined in pcg-random-0.1.4.0 · System.Random.PCG.Class
(Variate a, Variate b, Variate c) => Variate (a, b, c)Defined in pcg-random-0.1.4.0 · System.Random.PCG.Class
(Variate a, Variate b, Variate c, Variate d) => Variate (a, b, c, d)Defined in pcg-random-0.1.4.0 · System.Random.PCG.Class

Type restricted versions

uniform

valueuniformW8 :: Generator g m => g -> m Word8

valueuniformW16 :: Generator g m => g -> m Word16

valueuniformW32 :: Generator g m => g -> m Word32

valueuniformW64 :: Generator g m => g -> m Word64

valueuniformI8 :: Generator g m => g -> m Int8

valueuniformI16 :: Generator g m => g -> m Int16

valueuniformI32 :: Generator g m => g -> m Int32

valueuniformI64 :: Generator g m => g -> m Int64

valueuniformF :: Generator g m => g -> m Float

valueuniformD :: Generator g m => g -> m Double

valueuniformBool :: Generator g m => g -> m Bool

uniformR

valueuniformRW8 :: Generator g m => (Word8, Word8) -> g -> m Word8

valueuniformRW16 :: Generator g m => (Word16, Word16) -> g -> m Word16

valueuniformRW32 :: Generator g m => (Word32, Word32) -> g -> m Word32

valueuniformRW64 :: Generator g m => (Word64, Word64) -> g -> m Word64

valueuniformRI8 :: Generator g m => (Int8, Int8) -> g -> m Int8

valueuniformRI16 :: Generator g m => (Int16, Int16) -> g -> m Int16

valueuniformRI32 :: Generator g m => (Int32, Int32) -> g -> m Int32

valueuniformRI64 :: Generator g m => (Int64, Int64) -> g -> m Int64

valueuniformRF :: Generator g m => (Float, Float) -> g -> m Float

valueuniformRD :: Generator g m => (Double, Double) -> g -> m Double

valueuniformRBool :: Generator g m => (Bool, Bool) -> g -> m Bool

uniformB

valueuniformBW8 :: Generator g m => Word8 -> g -> m Word8

valueuniformBW16 :: Generator g m => Word16 -> g -> m Word16

valueuniformBW32 :: Generator g m => Word32 -> g -> m Word32

valueuniformBW64 :: Generator g m => Word64 -> g -> m Word64

valueuniformBI8 :: Generator g m => Int8 -> g -> m Int8

valueuniformBI16 :: Generator g m => Int16 -> g -> m Int16

valueuniformBI32 :: Generator g m => Int32 -> g -> m Int32

valueuniformBI64 :: Generator g m => Int64 -> g -> m Int64

valueuniformBF :: Generator g m => Float -> g -> m Float

valueuniformBD :: Generator g m => Double -> g -> m Double

valueuniformBBool :: Generator g m => Bool -> g -> m Bool

Utilities

familytype family Unsigned a

Instances10Unsigned, …

type Unsigned Int16 = Word16Defined in pcg-random-0.1.4.0 · System.Random.PCG.Class
type Unsigned Int32 = Word32Defined in pcg-random-0.1.4.0 · System.Random.PCG.Class
type Unsigned Int64 = Word64Defined in pcg-random-0.1.4.0 · System.Random.PCG.Class
type Unsigned Int8 = Word8Defined in pcg-random-0.1.4.0 · System.Random.PCG.Class
type Unsigned Int = WordDefined in pcg-random-0.1.4.0 · System.Random.PCG.Class
type Unsigned Word = WordDefined in pcg-random-0.1.4.0 · System.Random.PCG.Class
type Unsigned Word16 = Word16Defined in pcg-random-0.1.4.0 · System.Random.PCG.Class
type Unsigned Word32 = Word32Defined in pcg-random-0.1.4.0 · System.Random.PCG.Class
type Unsigned Word64 = Word64Defined in pcg-random-0.1.4.0 · System.Random.PCG.Class
type Unsigned Word8 = Word8Defined in pcg-random-0.1.4.0 · System.Random.PCG.Class

valuewordsTo64Bit :: Integral a => Word32 -> Word32 -> a

valuewordToBool :: Word32 -> Bool

valuewordToFloat :: Word32 -> Float

valuewordsToDouble :: Word32 -> Word32 -> Double

valuesysRandom :: IO Word64

Source#

Generate a random number using System.Entropy.

Use RDRAND if available and XOR with /dev/urandom on Unix and CryptAPI on Windows. This entropy is considered cryptographically secure but not true entropy.