maybeCastObj.h

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#ifndef canvas_Persistency_Common_detail_maybeCastObj_h
#define canvas_Persistency_Common_detail_maybeCastObj_h

#include <typeinfo>

namespace art {
  namespace detail {
    bool upcastAllowed(std::type_info const& tiFrom,
                       std::type_info const& tiTo);
    template <typename element_type>
    void const* maybeCastObj(element_type const* address,
                             std::type_info const& tiTo);
    void const* maybeCastObj(void const* address,
                             std::type_info const& tiFrom,
                             std::type_info const& tiTo);
  }
}

template <class element_type>
inline void const*
art::detail::maybeCastObj(element_type const* address,
                          std::type_info const& tiTo)
{
  static std::type_info const& tiFrom{typeid(element_type)};
  return maybeCastObj(address, tiFrom, tiTo);
}

#endif /* canvas_Persistency_Common_detail_maybeCastObj_h */

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