operations.h

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#ifndef LARCOREALG_COREUTILS_OPERATIONS_H
#define LARCOREALG_COREUTILS_OPERATIONS_H

// C++ standard library
#include <memory> // std::addressof()

namespace util {

  //----------------------------------------------------------------------------
  struct AddressTaker {

    template <typename T>
    auto operator()(T& ref) const
    {
      return std::addressof(ref);
    }

  }; // struct AddressTaker

  decltype(auto) takeAddress()
  {
    return AddressTaker();
  }

  //----------------------------------------------------------------------------
  struct Dereferencer {

    template <typename T>
    decltype(auto) operator()(T&& ptr) const
    {
      return *ptr;
    }

  }; // struct Dereferencer

  decltype(auto) dereference()
  {
    return Dereferencer();
  }

  //----------------------------------------------------------------------------

} // namespace util

#endif // LARCOREALG_COREUTILS_OPERATIONS_H