From 428967ddacc509ee0e0966126daaadc087501894 Mon Sep 17 00:00:00 2001
From: Paolo Cignoni <paolo.cignoni@isti.cnr.it>
Date: Thu, 8 Dec 2016 00:00:41 +0100
Subject: [PATCH] Added the check for un-initialized ff adjacency in an assert

---
 vcg/simplex/face/topology.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/vcg/simplex/face/topology.h b/vcg/simplex/face/topology.h
index 64e990ff..4526ad9b 100644
--- a/vcg/simplex/face/topology.h
+++ b/vcg/simplex/face/topology.h
@@ -321,8 +321,8 @@ void FFAttach(FaceType * &f, int z1, FaceType *&f2, int z2)
 template <class FaceType>
 void FFAttachManifold(FaceType * &f1, int z1, FaceType *&f2, int z2)
 {
-  assert(IsBorder<FaceType>(*f1,z1));
-  assert(IsBorder<FaceType>(*f2,z2));
+  assert(IsBorder<FaceType>(*f1,z1) || f1->FFp(z1)==0);
+  assert(IsBorder<FaceType>(*f2,z2) || f2->FFp(z2)==0);
   assert(f1->V0(z1) == f2->V0(z2) || f1->V0(z1) == f2->V1(z2));
   assert(f1->V1(z1) == f2->V0(z2) || f1->V1(z1) == f2->V1(z2));
   f1->FFp(z1) = f2;