Generating random numbers over a range in Go

Question

All the integer functions in math/rand generate non-negative numbers.

rand.Int() int              // [0, MaxInt]
rand.Int31() int32          // [0, MaxInt32]         


        

Answer 1

I found this example at Go Cookbook, which is equivalent to rand.Range(min, max int) (if that function existed):

rand.Intn(max - min) + min