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HEPEvtcom.cc
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28 //
29 // ======================================================================
30 // PARAMETER (NMXHEP=4000)
31 // COMMON/HEPEVT/NEVHEP,NHEP,ISTHEP(NMXHEP),IDHEP(NMXHEP),
32 // & JMOHEP(2,NMXHEP),JDAHEP(2,NMXHEP),PHEP(5,NMXHEP),VHEP(4,NMXHEP)
33 // ======================================================================
59 //
60 // This interface to HEPEVT common block treats the block as
61 // an array of bytes --- the precision and number of entries
62 // is determined "on the fly" by the wrapper and used to decode
63 // each entry.
64 //
65 // HEPEVT_EntriesAllocation is the maximum size of the HEPEVT common block
66 // that can be interfaced. It is NOT the actual size of the HEPEVT common
67 // used in each individual application. The actual size can be changed on
68 // the fly using HepMC::HEPEVT_Wrapper::set_max_number_entries().
69 // Thus HEPEVT_EntriesAllocation should typically be set
70 // to the maximum possible number of entries --- 10000 is a good choice
71 // (and is the number used by ATLAS versions of Pythia).
72 
73 #include <ctype.h>
74 
75 enum {HEPEVT_EntriesAllocation=4000};
76 
77 const unsigned int hepevt_bytes_allocation =
78 sizeof(long int) * ( 2 + 4 * HEPEVT_EntriesAllocation )
79  + sizeof(double) * ( 9 * HEPEVT_EntriesAllocation );
80 
81 extern "C" struct hepevt{
83 };
84