Alignment/Geners/interface/ClearIfPointer.hh - master - githubmirror/cmssw

Alignment/Geners/interface/ClearIfPointer.hh

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08 май 2019, 15:16

08 май 2019, 15:167614b05

#ifndef GENERS_CLEARIFPOINTER_HH_
#define GENERS_CLEARIFPOINTER_HH_

namespace gs {
  template <class T>
  struct ClearIfPointer {
    static void clear(T &) {}
  };

  template <class T>
  struct ClearIfPointer<T *> {
    static void clear(T *&ptr) { ptr = 0; }
  };

  // The following will set object value to 0 if object is a pointer
  template <class T>
  void clearIfPointer(T &obj) {
    ClearIfPointer<T>::clear(obj);
  }
}  // namespace gs

#endif  // GENERS_CLEARIFPOINTER_HH_