closes assimp#2809: fix crash for special ifc file.

meesokim · Dec 8, 2019 · e3da92f · e3da92f
1 parent fbebeba
commit e3da92f
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/code/Importer/IFC/IFCGeometry.cpp b/code/Importer/IFC/IFCGeometry.cpp
@@ -138,8 +138,9 @@ void ProcessPolygonBoundaries(TempMesh& result, const TempMesh& inmesh, size_t m
             }
         }
     }
-
-    ai_assert(outer_polygon_it != end);
+	if (outer_polygon_it == end) {
+		return;
+	}
 
     const size_t outer_polygon_size = *outer_polygon_it;
     const IfcVector3& master_normal = normals[std::distance(begin, outer_polygon_it)];