fastrand

Documentation

Overview

Package fastrand provides a fast random number generator based on xorshift

This sort of thing is frequently needed during benchmarks, and using math/rand will make create a single-threaded bottleneck. Using rand.New() is expensive so always creating multiple sources isn't always an answer either.

Index

• type Rng
  • func (r *Rng) Int32n(n uint32) uint32
  • func (r *Rng) Intn(bound uint64) uint64
  • func (r *Rng) Next() uint64

Types

type Rng

type Rng uint64

func (*Rng) Int32n

func (r *Rng) Int32n(n uint32) uint32

func (*Rng) Intn

func (r *Rng) Intn(bound uint64) uint64

Intn returns a uniform random integer [0,bound)

func (*Rng) Next

func (r *Rng) Next() uint64

Next returns the next random number