From: Glen Low <glen.low@pixelglow.com>
Date: Sat, 12 Dec 2015 00:20:04 +0000 (+0800)
Subject: Fix PointSet leak when inserting same point
X-Git-Tag: TRAVIS_CI_BUILD_EXPERIMENTAL~26^2
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=20c63de30e399289eb2a93c4fdeaf9bd845bbf3d;p=graphviz

Fix PointSet leak when inserting same point
---

diff --git a/lib/common/pointset.c b/lib/common/pointset.c
index e0a50c3d9..257d189d2 100644
--- a/lib/common/pointset.c
+++ b/lib/common/pointset.c
@@ -72,16 +72,23 @@ void freePS(PointSet * ps)
 
 void insertPS(PointSet * ps, point pt)
 {
-    dtinsert(ps, mkPair(pt));
+    pair *pp;
+
+    pp = mkPair(pt);
+    if (dtinsert(ps, pp) != pp)
+        free(pp);
 }
 
 void addPS(PointSet * ps, int x, int y)
 {
     point pt;
+    pair *pp;
 
     pt.x = x;
     pt.y = y;
-    dtinsert(ps, mkPair(pt));
+    pp = mkPair(pt);
+    if (dtinsert(ps, pp) != pp)
+        free(pp);
 }
 
 int inPS(PointSet * ps, point pt)