TDirectoryReset.h

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// Dear emacs, this is -*- c++ -*-
 
/*
  Copyright (C) 2002-2017 CERN for the benefit of the ATLAS collaboration
*/
 
// $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