From 512a4a15baabd26f7adf937ccb0cb230325007e9 Mon Sep 17 00:00:00 2001
From: Thomas Fischer <thomas.fischer@ufz.de>
Date: Tue, 15 Mar 2016 14:54:33 +0100
Subject: [PATCH] [GL] QuadTree: Prevent mem leaks.

---
 GeoLib/QuadTree.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/GeoLib/QuadTree.h b/GeoLib/QuadTree.h
index 64cbab9d167..b7c7236de14 100644
--- a/GeoLib/QuadTree.h
+++ b/GeoLib/QuadTree.h
@@ -384,16 +384,20 @@ private:
 		POINT mid_point(_ll);
 		mid_point[0] += (_ur[0] - _ll[0]) / 2.0;
 		mid_point[1] += (_ur[1] - _ll[1]) / 2.0;
+		assert(_childs[0] == nullptr);
 		_childs[0] = new QuadTree<POINT> (mid_point, _ur, this, _depth + 1, _max_points_per_node); // north east
 		POINT h_ll(mid_point), h_ur(mid_point);
 		h_ll[0] = _ll[0];
 		h_ur[1] = _ur[1];
+		assert(_childs[1] == nullptr);
 		_childs[1] = new QuadTree<POINT> (h_ll, h_ur, this, _depth + 1, _max_points_per_node); // north west
+		assert(_childs[2] == nullptr);
 		_childs[2] = new QuadTree<POINT> (_ll, mid_point, this, _depth + 1, _max_points_per_node); // south west
 		h_ll = _ll;
 		h_ll[0] = mid_point[0];
 		h_ur = _ur;
 		h_ur[1] = mid_point[1];
+		assert(_childs[3] == nullptr);
 		_childs[3] = new QuadTree<POINT> (h_ll, h_ur, this, _depth + 1, _max_points_per_node); // south east
 
 		// distribute points to sub quadtrees
-- 
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