From 24cde508294b537e9a7b8d298cfee4a13656e9ef Mon Sep 17 00:00:00 2001
From: Anthony Geay <anthony.geay@edf.fr>
Date: Wed, 16 Jun 2021 17:11:55 +0200
Subject: [PATCH] [EDF23724] : protection against intersection on a single
 array that can be ambigous and so return an unexpected result

---
 src/MEDCoupling/MEDCouplingMemArray.txx | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/MEDCoupling/MEDCouplingMemArray.txx b/src/MEDCoupling/MEDCouplingMemArray.txx
index 1d1030307..1e8fb79f6 100755
--- a/src/MEDCoupling/MEDCouplingMemArray.txx
+++ b/src/MEDCoupling/MEDCouplingMemArray.txx
@@ -7082,6 +7082,9 @@ struct NotInRange
           throw INTERP_KERNEL::Exception("DataArrayInt::BuildIntersection : only single component allowed !");
       }
     //
+    if(a.size()==1)
+      throw INTERP_KERNEL::Exception("DataArrayInt::BuildIntersection : only single not null element in array ! For safety reasons exception is raised !");
+    //
     std::set<T> r;
     for(typename std::vector<const DataArrayType *>::const_iterator it=a.begin();it!=a.end();it++)
       {
-- 
2.39.2