MT19937.Pure

Efficient, pure, standard 32-bit MT19937 Mersenne Twister implementation.

Documentation

data MT19937

MT19937 state, holding the state vector and the current index.

Instances

Show MT19937

Defined in MT19937.Pure

Methods

showsPrec :: Int -> MT19937 -> ShowS

show :: MT19937 -> String

showList :: [MT19937] -> ShowS

init :: Word32 -> MT19937

Initialize an MT19937 with the given seed.

init' :: Word32 -> MT19937

Initialize an MT19937 with the given seed, without pre-twisting.

extract :: MT19937 -> (Word32, MT19937)

Extract the next random word and return the updated state.

skip :: Int -> MT19937 -> MT19937

Skip the given number of random words.

If the skips would result in multiple twists, we perform these in a single pass (rather than copying the array every twist).