From: vsr <vsr@opencascade.com>
Date: Mon, 25 Apr 2011 13:01:26 +0000 (+0000)
Subject: Fix SIGSEGV raised in UnionList(), DifferenceList() and other functions if the GEOM... 
X-Git-Tag: V6_3_0b1~20
X-Git-Url: http://git.salome-platform.org/gitweb/?a=commitdiff_plain;h=cafc4bab720cbd51234c44dd3128ef3b348a9749;p=modules%2Fgeom.git

Fix SIGSEGV raised in UnionList(), DifferenceList() and other functions if the GEOM group becomes empty.
---

diff --git a/src/GEOMImpl/GEOMImpl_IGroupOperations.cxx b/src/GEOMImpl/GEOMImpl_IGroupOperations.cxx
index 86ed5fbe7..224dda4aa 100644
--- a/src/GEOMImpl/GEOMImpl_IGroupOperations.cxx
+++ b/src/GEOMImpl/GEOMImpl_IGroupOperations.cxx
@@ -297,6 +297,7 @@ void GEOMImpl_IGroupOperations::UnionList (Handle(GEOM_Object) theGroup,
     Handle(GEOM_Object) anObj_i = Handle(GEOM_Object)::DownCast(theSubShapes->Value(i));
 
     TopoDS_Shape aShape_i = anObj_i->GetValue();
+    if ( aShape_i.IsNull() ) continue;
     TopAbs_ShapeEnum aType_i = aShape_i.ShapeType();
 
     // 1. If aShape_i is sub-shape of aMainShape - add it