Add function number.RandomInt64

2023-01-13 21:40:24 -05:00
parent 7a617d3a1d
commit 7fbcb2904a
3 changed files with 17 additions and 10 deletions
@@ -1,6 +1,11 @@
 package number

-import "golang.org/x/exp/constraints"
+import (
+	"crypto/rand"
+	"math/big"
+
+	"golang.org/x/exp/constraints"
+)

 func Min[T constraints.Ordered](vs ...T) T {
 	if len(vs) == 0 {
@@ -29,3 +34,8 @@ func Max[T constraints.Ordered](vs ...T) T {
 	}
 	return max
 }
+
+func RandomInt64(max int64) int64 {
+	rnd, _ := rand.Int(rand.Reader, big.NewInt(max))
+	return rnd.Int64()
+}