From d4a4da93bbf68b0daa576855867ff1da5fd9c12f Mon Sep 17 00:00:00 2001
From: geay <anthony.geay@cea.fr>
Date: Thu, 17 Apr 2014 13:09:30 +0200
Subject: [PATCH] Addition off DynamicCast for DaVinci C++ style coders :-)

---
 .../MEDCouplingAutoRefCountObjectPtr.hxx      | 25 +++++++++++++++++++
 src/MEDLoader/MEDFileMeshElt.cxx              |  4 +--
 2 files changed, 27 insertions(+), 2 deletions(-)

diff --git a/src/MEDCoupling/MEDCouplingAutoRefCountObjectPtr.hxx b/src/MEDCoupling/MEDCouplingAutoRefCountObjectPtr.hxx
index d80ca915c..7e097ff57 100644
--- a/src/MEDCoupling/MEDCouplingAutoRefCountObjectPtr.hxx
+++ b/src/MEDCoupling/MEDCouplingAutoRefCountObjectPtr.hxx
@@ -22,6 +22,7 @@
 #define __PARAMEDMEM_MEDCOUPLINGAUTOREFCOUNTOBJECTPTR_HXX__
 
 #include "MEDCouplingRefCountObject.hxx"
+#include "InterpKernelException.hxx"
 
 namespace ParaMEDMEM
 {
@@ -48,6 +49,30 @@ namespace ParaMEDMEM
   private:
     T *_ptr;
   };
+
+  template<class T, class U>
+  typename ParaMEDMEM::MEDCouplingAutoRefCountObjectPtr<U> DynamicCast(typename ParaMEDMEM::MEDCouplingAutoRefCountObjectPtr<T>& autoSubPtr) throw()
+  {
+    T *subPtr(autoSubPtr);
+    U *ptr(dynamic_cast<U *>(subPtr));
+    typename ParaMEDMEM::MEDCouplingAutoRefCountObjectPtr<U> ret(ptr);
+    if(ptr)
+      ptr->incrRef();
+    return ret;
+  }
+
+  template<class T, class U>
+  typename ParaMEDMEM::MEDCouplingAutoRefCountObjectPtr<U> DynamicCastSafe(typename ParaMEDMEM::MEDCouplingAutoRefCountObjectPtr<T>& autoSubPtr)
+  {
+    T *subPtr(autoSubPtr);
+    U *ptr(dynamic_cast<U *>(subPtr));
+    if(subPtr && !ptr)
+      throw INTERP_KERNEL::Exception("DynamicCastSafe : U is not a subtype of T !");
+    typename ParaMEDMEM::MEDCouplingAutoRefCountObjectPtr<U> ret(ptr);
+    if(ptr)
+      ptr->incrRef();
+    return ret;
+  }
 }
 
 #endif
diff --git a/src/MEDLoader/MEDFileMeshElt.cxx b/src/MEDLoader/MEDFileMeshElt.cxx
index cdc710e03..7d30a60a1 100644
--- a/src/MEDLoader/MEDFileMeshElt.cxx
+++ b/src/MEDLoader/MEDFileMeshElt.cxx
@@ -166,7 +166,7 @@ void MEDFileUMeshPerType::loadPolyg(med_idt fid, const char *mName, int dt, int
   med_bool changement,transformation;
   med_int curNbOfElem=MEDmeshnEntity(fid,mName,dt,it,entity,geoElt,MED_INDEX_NODE,MED_NODAL,&changement,&transformation)-1;
   _m=MEDCoupling1DGTUMesh::New(mName,geoElt==MED_POLYGON?INTERP_KERNEL::NORM_POLYGON:INTERP_KERNEL::NORM_QPOLYG);
-  MEDCoupling1DGTUMesh *mc(dynamic_cast<MEDCoupling1DGTUMesh *>((MEDCoupling1GTUMesh *)_m));
+  MEDCouplingAutoRefCountObjectPtr<MEDCoupling1DGTUMesh> mc(DynamicCast<MEDCoupling1GTUMesh,MEDCoupling1DGTUMesh>(_m));
   MEDCouplingAutoRefCountObjectPtr<DataArrayInt> conn(DataArrayInt::New()),connI(DataArrayInt::New());
   conn->alloc(arraySize,1); connI->alloc(curNbOfElem+1,1);
   MEDmeshPolygon2Rd(fid,mName,dt,it,MED_CELL,geoElt,MED_NODAL,connI->getPointer(),conn->getPointer());
@@ -183,7 +183,7 @@ void MEDFileUMeshPerType::loadPolyh(med_idt fid, const char *mName, int dt, int
   med_int indexFaceLgth=MEDmeshnEntity(fid,mName,dt,it,MED_CELL,MED_POLYHEDRON,MED_INDEX_NODE,MED_NODAL,&changement,&transformation);
   int curNbOfElem=MEDmeshnEntity(fid,mName,dt,it,MED_CELL,MED_POLYHEDRON,MED_INDEX_FACE,MED_NODAL,&changement,&transformation)-1;
   _m=MEDCoupling1DGTUMesh::New(mName,INTERP_KERNEL::NORM_POLYHED);
-  MEDCoupling1DGTUMesh *mc(dynamic_cast<MEDCoupling1DGTUMesh *>((MEDCoupling1GTUMesh *)_m));
+  MEDCouplingAutoRefCountObjectPtr<MEDCoupling1DGTUMesh> mc(DynamicCastSafe<MEDCoupling1GTUMesh,MEDCoupling1DGTUMesh>(_m));
   INTERP_KERNEL::AutoPtr<int> index=new int[curNbOfElem+1];
   INTERP_KERNEL::AutoPtr<int> indexFace=new int[indexFaceLgth];
   INTERP_KERNEL::AutoPtr<int> locConn=new int[connFaceLgth];
-- 
2.39.2