random

Documentation

Overview

Package random contains a collection of utility functions to generate random numbers and strings.

Index

• type Rnd
  • func New(r io.Reader) *Rnd
  • func (r *Rnd) RandUint32() uint32
  • func (r *Rnd) RandUint64() uint64
  • func (r *Rnd) RandomBytes(n int) ([]byte, error)

Types

type Rnd

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

Rnd defines then random number generator.

func New

func New(r io.Reader) *Rnd

New initialize the random reader. The r argument must be a cryptographically secure random number generator. The crypto/rand.Read is used as default if r == nil.

func (*Rnd) RandUint32

func (r *Rnd) RandUint32() uint32

RandUint32 returns a pseudo-random 32-bit value as a uint32 from the default Source. It try to use crypto/rand.Reader, if it fails, it falls back to math/rand/v2.Uint32.

func (*Rnd) RandUint64

func (r *Rnd) RandUint64() uint64

RandUint64 returns a pseudo-random 64-bit value as a uint64 from the default Source. It try to use crypto/rand.Reader, if it fails, it falls back to math/rand/v2.Uint64.

func (*Rnd) RandomBytes

func (r *Rnd) RandomBytes(n int) ([]byte, error)

RandomBytes generates a slice of random bytes with the specified length.