fastrand

Documentation

Overview

Package fastrand implements fast pesudorandom number generator that should scale well on multi-CPU systems.

Use crypto/rand instead of this package for generating cryptographically secure random numbers.

Index

• func Uint32() uint32
• func Uint32n(maxN uint32) uint32
• type RNG
  • func (r *RNG) Seed(n uint32)
  • func (r *RNG) Uint32() uint32
  • func (r *RNG) Uint32n(maxN uint32) uint32

Functions

func Uint32

func Uint32() uint32

Uint32 returns pseudorandom uint32.

It is safe calling this function from concurrent goroutines.

func Uint32n

func Uint32n(maxN uint32) uint32

Uint32n returns pseudorandom uint32 in the range [0..maxN).

It is safe calling this function from concurrent goroutines.

Types

type RNG

type RNG struct {
	// contains filtered or unexported fields
}

RNG is a pseudorandom number generator.

It is unsafe to call RNG methods from concurrent goroutines.

func (*RNG) Seed

func (r *RNG) Seed(n uint32)

Seed sets the r state to n.

func (*RNG) Uint32

func (r *RNG) Uint32() uint32

Uint32 returns pseudorandom uint32.

It is unsafe to call this method from concurrent goroutines.

func (*RNG) Uint32n

func (r *RNG) Uint32n(maxN uint32) uint32

Uint32n returns pseudorandom uint32 in the range [0..maxN).

It is unsafe to call this method from concurrent goroutines.