From 276a923027e6e701884bce817eee663a00aabae6 Mon Sep 17 00:00:00 2001
From: unknown <tomasz.wlostowski@cern.ch>
Date: Wed, 2 Sep 2015 08:32:24 +0200
Subject: [PATCH] SHAPE_POLY_SET: fix segfault when checking for a point in
 empty polyset

---
 common/geometry/shape_poly_set.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/common/geometry/shape_poly_set.cpp b/common/geometry/shape_poly_set.cpp
index 4c84630ba2..ce289264c2 100644
--- a/common/geometry/shape_poly_set.cpp
+++ b/common/geometry/shape_poly_set.cpp
@@ -693,11 +693,17 @@ bool SHAPE_POLY_SET::Contains( const VECTOR2I& aP, int aSubpolyIndex ) const
 {
     // fixme: support holes!
 
+    if( m_polys.size() == 0 ) // empty set?
+        return false;
+
     if( aSubpolyIndex >= 0 )
         return pointInPolygon( aP, m_polys[aSubpolyIndex][0] );
 
     BOOST_FOREACH ( const POLYGON& polys, m_polys )
     {
+        if( polys.size() == 0 )
+            continue;
+
         if( pointInPolygon( aP, polys[0] ) )
             return true;
     }