From 3375dac049d2e7c597b29485d294b6f30798b4d0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Thomas=20Corbi=C3=A8re?= <thomas.corbiere@tilkal.com>
Date: Tue, 3 Apr 2018 14:09:50 +0200
Subject: [PATCH] add Float64() and RandFloat64().

---
 common/random.go | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/common/random.go b/common/random.go
index af531992e..b767e3589 100644
--- a/common/random.go
+++ b/common/random.go
@@ -113,6 +113,10 @@ func RandFloat32() float32 {
 	return grand.Float32()
 }
 
+func RandFloat64() float64 {
+	return grand.Float64()
+}
+
 func RandTime() time.Time {
 	return grand.Time()
 }
@@ -272,6 +276,14 @@ func (r *Rand) Float32() float32 {
 	return f32
 }
 
+// It is not safe for cryptographic usage.
+func (r *Rand) Float64() float64 {
+	r.Lock()
+	f64 := r.rand.Float64()
+	r.Unlock()
+	return f64
+}
+
 // It is not safe for cryptographic usage.
 func (r *Rand) Time() time.Time {
 	return time.Unix(int64(r.Uint64Exp()), 0)