IterWithDict.h

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#ifndef FWCore_Reflection_IterWithDict_h
#define FWCore_Reflection_IterWithDict_h

/*----------------------------------------------------------------------

IterWithDict:  An iterator for a TList so a range for loop can be used

----------------------------------------------------------------------*/

#include "TList.h"

namespace edm {

  class IterWithDictBase {
  private:
    TIter iter_;
    bool atEnd_;

  protected:
    void advance();
    TIter const& iter() const;

  public:
    IterWithDictBase();
    explicit IterWithDictBase(TList*);
    bool operator!=(IterWithDictBase const&) const;
  };

  template <typename T>
  class IterWithDict : public IterWithDictBase {
  public:
    IterWithDict() : IterWithDictBase() {}
    explicit IterWithDict(TList* list) : IterWithDictBase(list) {}
    IterWithDict<T>& operator++() {
      advance();
      return *this;
    }
    T* operator*() const { return static_cast<T*>(*iter()); }
  };

}  // namespace edm

#endif  // FWCore_Reflection_IterWithDict_h