/cvmfs/atlas.cern.ch/repo/sw/ASG/AnalysisBase/2.4.31/xAODRootAccess/xAODRootAccess/tools/TDirectoryReset.h

// Dear emacs, this is -*- c++ -*-
// $Id: TDirectoryReset.h 597264 2014-05-15 15:52:37Z krasznaa $
#ifndef XAODROOTACCESS_TOOLS_TDIRECTORYRESET_H
#define XAODROOTACCESS_TOOLS_TDIRECTORYRESET_H

// ROOT include(s):
#include <TDirectory.h>

namespace xAOD {

   class TDirectoryReset {

   public:
      TDirectoryReset( ::TDirectory* dir = gDirectory ) : m_dir( dir ) {}
      ~TDirectoryReset() { if( m_dir ) m_dir->cd(); }

   private:
      ::TDirectory* m_dir;

   }; // class TDirectoryReset

} // namespace xAOD

#endif // XAODROOTACCESS_TOOLS_TDIRECTORYRESET_H

---