rand.splitmix64 #

struct SplitMix64RNG {
mut:
	state     u64 = seed.time_seed_64()
	has_extra bool
	extra     u32
}

SplitMix64RNG ported from http://xoshiro.di.unimi.it/splitmix64.c

fn (mut rng SplitMix64RNG) seed(seed_data []u32)

seed sets the seed of the accepting SplitMix64RNG to the given data in little-endian format (i.e. lower 32 bits are in [0] and higher 32 bits in [1]).

fn (mut rng SplitMix64RNG) u32() u32

u32 updates the PRNG state and returns the next pseudorandom u32.

fn (mut rng SplitMix64RNG) u64() u64

u64 updates the PRNG state and returns the next pseudorandom u64.

fn (mut rng SplitMix64RNG) u32n(bound u32) u32

u32n returns a pseudorandom u32 less than bound.

fn (mut rng SplitMix64RNG) u64n(bound u64) u64

u64n returns a pseudorandom u64 less than bound.

fn (mut rng SplitMix64RNG) u32_in_range(min u32, max u32) u32

u32n returns a pseudorandom u32 value that is guaranteed to be in range [min, max).

fn (mut rng SplitMix64RNG) u64_in_range(min u64, max u64) u64

u64n returns a pseudorandom u64 value that is guaranteed to be in range [min, max).

fn (mut rng SplitMix64RNG) int() int

int returns a pseudorandom 32-bit (possibly negative) int.

fn (mut rng SplitMix64RNG) i64() i64

i64 returns a pseudorandom 64-bit (possibly negative) i64.

fn (mut rng SplitMix64RNG) int31() int

int31 returns a positive pseudorandom 31-bit int.

fn (mut rng SplitMix64RNG) int63() i64

int63 returns a positive pseudorandom 63-bit i64.

fn (mut rng SplitMix64RNG) intn(max int) int

intn returns a pseudorandom int in range [0, max).

fn (mut rng SplitMix64RNG) i64n(max i64) i64

i64n returns a pseudorandom i64 in range [0, max).

fn (mut rng SplitMix64RNG) int_in_range(min int, max int) int

int_in_range returns a pseudorandom int in range [min, max).

fn (mut rng SplitMix64RNG) i64_in_range(min i64, max i64) i64

i64_in_range returns a pseudorandom i64 in range [min, max).

fn (mut rng SplitMix64RNG) f32() f32

f32 returns a pseudorandom f32 value in range [0, 1).

fn (mut rng SplitMix64RNG) f64() f64

f64 returns a pseudorandom f64 value in range [0, 1).

fn (mut rng SplitMix64RNG) f32n(max f32) f32

f32n returns a pseudorandom f32 value in range [0, max).

fn (mut rng SplitMix64RNG) f64n(max f64) f64

f64n returns a pseudorandom f64 value in range [0, max).

fn (mut rng SplitMix64RNG) f32_in_range(min f32, max f32) f32

f32_in_range returns a pseudorandom f32 in range [min, max).

fn (mut rng SplitMix64RNG) f64_in_range(min f64, max f64) f64

i64_in_range returns a pseudorandom i64 in range [min, max).

fn (mut rng SplitMix64RNG) free()

free should be called when the generator is no longer needed