From 6883325f926af425cf1db7606506f5538b7a205a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?R=C3=A9mi=20Verschelde?= <remi@verschelde.fr>
Date: Sun, 1 May 2016 11:37:46 +0200
Subject: [PATCH] math: Fix rounding error for 0 in Math::round (#4495)

Thus revert the previous workaround in commit b123bc4a2a9c07fcfd27a84109960bda158b3b9d.
Fixes #3221.
---
 core/math/math_funcs.cpp | 4 +++-
 scene/gui/range.cpp      | 4 ----
 2 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/core/math/math_funcs.cpp b/core/math/math_funcs.cpp
index 07f114725d9..0fbd0312142 100644
--- a/core/math/math_funcs.cpp
+++ b/core/math/math_funcs.cpp
@@ -135,18 +135,20 @@ double Math::rad2deg(double p_y) {
 
 double Math::round(double p_val) {
 
-	if (p_val>0) {
+	if (p_val>=0) {
 		return ::floor(p_val+0.5);
 	} else {
 		p_val=-p_val;
 		return -::floor(p_val+0.5);
 	}
 }
+
 double Math::asin(double p_x) {
 
 	return ::asin(p_x);
 
 }
+
 double Math::acos(double p_x) {
 
 	return ::acos(p_x);
diff --git a/scene/gui/range.cpp b/scene/gui/range.cpp
index b00fcfe42c6..e056c55f718 100644
--- a/scene/gui/range.cpp
+++ b/scene/gui/range.cpp
@@ -78,10 +78,6 @@ void Range::set_val(double p_val) {
 	if (p_val<shared->min)
 		p_val=shared->min;
 
-	//avoid to set -0
-	if (p_val == 0)
-		p_val = 0;
-
 	if (shared->val==p_val)
 		return;