From b271edb092fffc911bcf626bda65728247764e10 Mon Sep 17 00:00:00 2001
From: msv <msv@opencascade.com>
Date: Wed, 15 May 2019 12:10:36 +0300
Subject: [PATCH] 0030712: Application Framework - Protect binary
 TriangulationDriver against empty triangulation in the file

The matter is that when the binary OCAF file contained a triangulation with 0 nodes and 0 triangles the method Paste would cause construction error of Poly_Triangulation.
This patch protects this method against exception.
---
 src/BinMDataXtd/BinMDataXtd_TriangulationDriver.cxx | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/BinMDataXtd/BinMDataXtd_TriangulationDriver.cxx b/src/BinMDataXtd/BinMDataXtd_TriangulationDriver.cxx
index 503999b67a..90b65288f0 100644
--- a/src/BinMDataXtd/BinMDataXtd_TriangulationDriver.cxx
+++ b/src/BinMDataXtd/BinMDataXtd_TriangulationDriver.cxx
@@ -63,6 +63,11 @@ Standard_Boolean BinMDataXtd_TriangulationDriver::Paste(const BinObjMgt_Persiste
   theSource >> hasUV;
   theSource >> deflection;
 
+  if (!nbNodes || !nbTriangles)
+  {
+    return Standard_False;
+  }
+
   // allocate the mesh
   Handle(Poly_Triangulation) PT = new Poly_Triangulation(nbNodes, nbTriangles, hasUV);