HepMC3 event record library: Globals

HepMC3 event record library

Here is a list of all documented macros with links to the documentation:

- HEPMC3_DEBUG : Errors.h
- HEPMC3_DEBUG_CODE_BLOCK : Errors.h
- HEPMC3_ERROR : Errors.h
- HEPMC3_ERROR_LEVEL : Errors.h
- HEPMC3_HEPEVT_NMXHEP : HEPEVT_Wrapper.h
- HEPMC3_HEPEVT_PRECISION : HEPEVT_Wrapper.h
- HEPMC3_VERSION : Version.h
- HEPMC3_VERSION_CODE : Version.h
- HEPMC3_WARNING : Errors.h
- HEPMC3_WARNING_LEVEL : Errors.h
- M_PI : FourVector.h