HydroRandom

(Fn [Int] (Array Byte))

                    (buf n)
                

creates a buffer containing random numbers.

(Fn [Int, (Ref (Array Byte) a)] (Array Byte))

                    (buf-deterministic len seed)
                

creates a buffer containing len numbers indistinguishable from random bytes without knowing seed. For a given seed, this function will always output the same sequence. This function is mainly useful for writing tests.

(Fn [] ())

erases part of the RNG state to make recovering previous RNG states impossible.

(Fn [] ())

reseeds the RNG; this is important to do after starting new threads.

Int

The number of bytes a seed takes up.

(Fn [] Int)

creates an unsigned random number of 32 bit length.

(Fn [Int] Int)

creates a uniform random number from 0 to an upper limit provided as argument.