package rand

import "k8s.io/apimachinery/pkg/util/rand"

Package rand provides utilities related to randomization.

Index ¶

• func Int() int
• func Int63nRange(min, max int64) int64
• func Intn(max int) int
• func IntnRange(min, max int) int
• func Perm(n int) []int
• func SafeEncodeString(s string) string
• func Seed(seed int64)
• func String(n int) string

Functions ¶

func Int ¶

func Int() int

Int returns a non-negative pseudo-random int.

func Int63nRange ¶

func Int63nRange(min, max int64) int64

IntnRange generates an int64 integer in range [min,max). By design this should panic if input is invalid, <= 0.

func Intn ¶

func Intn(max int) int

Intn generates an integer in range [0,max). By design this should panic if input is invalid, <= 0.

func IntnRange ¶

func IntnRange(min, max int) int

IntnRange generates an integer in range [min,max). By design this should panic if input is invalid, <= 0.

func Perm ¶

func Perm(n int) []int

Perm returns, as a slice of n ints, a pseudo-random permutation of the integers [0,n) from the default Source.

func SafeEncodeString ¶

func SafeEncodeString(s string) string

SafeEncodeString encodes s using the same characters as rand.String. This reduces the chances of bad words and ensures that strings generated from hash functions appear consistent throughout the API.

func Seed ¶

func Seed(seed int64)

Seed seeds the rng with the provided seed.

func String ¶

func String(n int) string

String generates a random alphanumeric string, without vowels, which is n characters long. This will panic if n is less than zero. How the random string is created: - we generate random int63's - from each int63, we are extracting multiple random letters by bit-shifting and masking - if some index is out of range of alphanums we neglect it (unlikely to happen multiple times in a row)

Source Files ¶

rand.go