DataFormats/Common/interface/Uninitialized.h - master - githubmirror/cmssw

DataFormats/Common/interface/Uninitialized.h

19 строк605 B

Andrea Bocci

Let edm::Wrapper<T> use the constructor T{kUninitialized}

08 дек 2024, 17:59

08 дек 2024, 17:59e274471

#ifndef DataFormats_Common_interface_Uninitialized_h
#define DataFormats_Common_interface_Uninitialized_h

/* Uninitialized
 *
 * This is an empty struct used as a tag to signal that a constructor will leave an object (partially) uninitialised,
 * with the assumption that it will be overwritten before being used.
 * One expected use case is to replace the default constructor used when deserialising objects from a ROOT file.
 */

namespace edm {

  struct Uninitialized {};

  constexpr inline Uninitialized kUninitialized;

}  // namespace edm

#endif  // DataFormats_Common_interface_Uninitialized_h