rand

Documentation

Overview

Package rand is used for concurrency safe random number generator.

Index

• type Rand
  • func New(seed int64) *Rand
  • func (r *Rand) Int() int
  • func (r *Rand) Perm(n int) []int

Types

type Rand

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

Rand is used for concurrency safe random number generator.

func New

func New(seed int64) *Rand

New returns a new Rand from seed.

func (*Rand) Int

func (r *Rand) Int() int

Int returns a non-negative pseudo-random int from the Source in Rand.r.

func (*Rand) Perm

func (r *Rand) Perm(n int) []int

Perm returns, as a slice of n ints, a pseudo-random permutation of the integers in the half-open interval [0,n) from the Source in Rand.r.