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#ifndef CommonTools_UtilAlgos_FwdPtrConversionFactory_h
#define CommonTools_UtilAlgos_FwdPtrConversionFactory_h
/**
\class "CommonTools/UtilAlgos/interface/FwdPtrConversionFactory.h"
\brief Converts back and forth from FwdPtr to instances.
\author Salvatore Rappoccio
*/
#include "DataFormats/Common/interface/FwdPtr.h"
#include "DataFormats/Common/interface/RefToBaseVector.h"
namespace edm {
/// Factory class template for how to produce products
/// from a FwdPtr. This particular example is for copy
/// construction, but the same signature can be used elsewhere.
template <class T>
struct ProductFromFwdPtrFactory {
T operator()(edm::FwdPtr<T> const &r) const { return T(*r); }
};
/// Factory class template for how to produce FwdPtrs
/// from a View.
template <class T>
struct FwdPtrFromProductFactory {
edm::FwdPtr<T> operator()(edm::View<T> const &view, unsigned int i) const {
return edm::FwdPtr<T>(view.ptrAt(i), view.ptrAt(i));
}
};
} // namespace edm
#endif
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