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G4INCLRanecu.cc
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25 //
26 // INCL++ intra-nuclear cascade model
27 // Pekka Kaitaniemi, CEA and Helsinki Institute of Physics
28 // Davide Mancusi, CEA
29 // Alain Boudard, CEA
30 // Sylvie Leray, CEA
31 // Joseph Cugnon, University of Liege
32 //
33 #define INCLXX_IN_GEANT4_MODE 1
34 
35 #include "globals.hh"
36 
37 /*
38  * G4INCLRanecu.cc
39  *
40  * \date 7 juin 2009
41  * \author Pekka Kaitaniemi
42  */
43 
44 #include "G4INCLRanecu.hh"
45 
46 namespace G4INCL {
47 
49  iseed1 = 666;
50  iseed2 = 777;
51  }
52 
54  setSeeds(sv);
55  }
56 
58 
60  {
61  // This is an adapted version of subroutine ranecu:
62  // A. Padal, J. Sempau Computer Physics Cummunications 175 (2006) 440-450
63  G4double uscale=1.0/2.147483563e9;
64 
65  long i1=iseed1/53668;
66  iseed1=40014*(iseed1-i1*53668)-i1*12211;
67 
68  if(iseed1 < 0) iseed1 = iseed1 + 2147483563;
69 
70  long i2=iseed2/52774;
71  iseed2=40692*(iseed2-i2*52774)-i2*3791;
72  if(iseed2 < 0) iseed2=iseed2+2147483399;
73 
74  long iz=iseed1-iseed2;
75  if(iz < 1) iz=iz+2147483562;
76 
77  return iz*uscale;
78  }
79 
80 }