//go:build go1.22 package rand import "math/rand/v2" // Shuffle returns an array of shuffled values. Uses the Fisher-Yates shuffle algorithm. func Shuffle(n int, swap func(i, j int)) { rand.Shuffle(n, swap) } // IntN returns, as an int, a pseudo-random number in the half-open interval [0,n) // from the default Source. // It panics if n <= 0. func IntN(n int) int { return rand.IntN(n) } // Int64 returns a non-negative pseudo-random 63-bit integer as an int64 // from the default Source. func Int64() int64 { return rand.Int64() }