From cacced7e507f7603bacc03ae2616e58f0ede122a Mon Sep 17 00:00:00 2001
From: Hein-Pieter van Braam
Date: Thu, 24 Aug 2017 22:58:51 +0200
Subject: Convert Object::cast_to() to the static version

Currently we rely on some undefined behavior when Object->cast_to() gets
called with a Null pointer. This used to work fine with GCC < 6 but
newer versions of GCC remove all codepaths in which the this pointer is
Null. However, the non-static cast_to() was supposed to be null safe.

This patch makes cast_to() Null safe and removes the now redundant Null
checks where they existed.

It is explained in this article: https://www.viva64.com/en/b/0226/
---
 editor/groups_editor.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'editor/groups_editor.cpp')

diff --git a/editor/groups_editor.cpp b/editor/groups_editor.cpp
index ea1827f16..fbbbf9139 100644
--- a/editor/groups_editor.cpp
+++ b/editor/groups_editor.cpp
@@ -65,7 +65,7 @@ void GroupsEditor::_remove_group(Object *p_item, int p_column, int p_id) {
 	if (!node)
 		return;
 
-	TreeItem *ti = p_item->cast_to<TreeItem>();
+	TreeItem *ti = Object::cast_to<TreeItem>(p_item);
 	if (!ti)
 		return;
 
-- 
cgit v1.2.3-70-g09d2