rand

Documentation

Index

• func Int() int
• func Int63n(n int64) int64
• func Intn(n int) int
• func Perm(n int) []int
• func Seed(n int64)
• func Shuffle(n int, swap func(i, j int))

Functions

func Int

func Int() int

Int returns a non-negative pseudo-random int.

func Int63n

func Int63n(n int64) int64

Int63n returns, as an int64, a non-negative pseudo-random number in [0,n). It panics if n <= 0.

func Intn

func Intn(n int) int

Intn returns, as an int, a non-negative pseudo-random number in [0,n). It panics if n <= 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).

func Seed

func Seed(n int64)

Seed uses the provided seed value to initialize the default Source to a deterministic state. If Seed is not called, the generator behaves as if seeded by Seed(1).

func Shuffle

func Shuffle(n int, swap func(i, j int))

Shuffle pseudo-randomizes the order of elements. n is the number of elements. swap swaps the elements with indexes i and j.