From a76db634f9bc9b69feccf414b27527624d7a4ae5 Mon Sep 17 00:00:00 2001
From: Christophe Bourcier <christophe.bourcier@cea.fr>
Date: Mon, 7 Dec 2020 07:46:27 +0100
Subject: [PATCH] Fix MEDReader to be able to read big meshes with connectivity
 ids length > 2**31 (int32 limit)

---
 .../plugin/MEDLoaderForPV/MEDFileFieldRepresentationTree.cxx  | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/Plugins/MEDReader/plugin/MEDLoaderForPV/MEDFileFieldRepresentationTree.cxx b/src/Plugins/MEDReader/plugin/MEDLoaderForPV/MEDFileFieldRepresentationTree.cxx
index 87404a49..a8396b31 100644
--- a/src/Plugins/MEDReader/plugin/MEDLoaderForPV/MEDFileFieldRepresentationTree.cxx
+++ b/src/Plugins/MEDReader/plugin/MEDLoaderForPV/MEDFileFieldRepresentationTree.cxx
@@ -270,7 +270,7 @@ void AssignDataPointerToVTK(typename MEDFileVTKTraits<T>::VtkType *vtkTab, typen
 
 // here copy is always assumed.
 template<class VTKT, class MCT>
-void AssignDataPointerOther(VTKT *vtkTab, MCT *mcTab, int nbElems)
+void AssignDataPointerOther(VTKT *vtkTab, MCT *mcTab, vtkIdType nbElems)
 {
   typedef typename VTKT::ValueType VTKType;
   if ( sizeof( VTKType ) == sizeof( typename MCT::Type ))
@@ -732,7 +732,7 @@ vtkUnstructuredGrid *MEDFileFieldRepresentationLeaves::buildVTKInstanceNoTimeInt
   MCAuto<DataArrayByte> typesSafe(typesMC);
   MCAuto<DataArrayIdType> cellLocationsSafe(cellLocationsMC),cellsSafe(cellsMC),faceLocationsSafe(faceLocationsMC),facesSafe(facesMC);
   //
-  int nbOfCells(typesSafe->getNbOfElems());
+  vtkIdType nbOfCells(typesSafe->getNbOfElems());
   vtkUnstructuredGrid *ret(vtkUnstructuredGrid::New());
   vtkUnsignedCharArray *cellTypes(vtkUnsignedCharArray::New());
   AssignDataPointerOther<vtkUnsignedCharArray,DataArrayByte>(cellTypes,typesSafe,nbOfCells);
-- 
2.39.2