| de4b745b |
1 | /************************************************************************** |
| 2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * |
| 3 | * * |
| 4 | * Author: The ALICE Off-line Project. * |
| 5 | * Contributors are mentioned in the code where appropriate. * |
| 6 | * * |
| 7 | * Permission to use, copy, modify and distribute this software and its * |
| 8 | * documentation strictly for non-commercial purposes is hereby granted * |
| 9 | * without fee, provided that the above copyright notice appears in all * |
| 10 | * copies and that both the copyright notice and this permission notice * |
| 11 | * appear in the supporting documentation. The authors make no claims * |
| 12 | * about the suitability of this software for any purpose. It is * |
| 13 | * provided "as is" without express or implied warranty. * |
| 14 | **************************************************************************/ |
| 15 | |
| 16 | /* $Id$ */ |
| 17 | |
| 18 | //----------------------------------------------------------------------------- |
| 19 | // Class: AliDimeRndm |
| 20 | // Responsibilities: Interface to Root random number generator |
| 21 | // from Fortran (re-implements FINCTION RLU_HIJING |
| 22 | // from HIJING) |
| 23 | // Note: Since AliGenDime belongs to another module (TDime) one cannot |
| 24 | // pass the ponter to the generator via static variable |
| 25 | // Collaborators: AliGenDime class |
| 26 | // Example: |
| 27 | // |
| 28 | // root> AliGenDime *gener = new AliGenDime(-1); |
| 29 | // root> AliDimeRndm::SetDimeRandom(new TRandom3()); |
| 30 | // root> AliDimeRndm::GetDimeRandom()->SetSeed(0); |
| 31 | // root> cout<<"Seed "<< AliDimeRndm::GetDimeRandom()->GetSeed() <<endl; |
| 32 | //----------------------------------------------------------------------------- |
| 33 | |
| 34 | #include <TRandom.h> |
| 35 | |
| 36 | #include "AliDimeRndm.h" |
| 37 | |
| 38 | TRandom * AliDimeRndm::fgDimeRandom=0; |
| 39 | |
| 40 | ClassImp(AliDimeRndm) |
| 41 | |
| 42 | //_______________________________________________________________________ |
| 43 | void AliDimeRndm::SetDimeRandom(TRandom *ran) { |
| 44 | // |
| 45 | // Sets the pointer to an existing random numbers generator |
| 46 | // |
| 47 | if(ran) fgDimeRandom=ran; |
| 48 | else fgDimeRandom=gRandom; |
| 49 | } |
| 50 | |
| 51 | //_______________________________________________________________________ |
| 52 | TRandom * AliDimeRndm::GetDimeRandom() { |
| 53 | // |
| 54 | // Retrieves the pointer to the random numbers generator |
| 55 | // |
| 56 | return fgDimeRandom; |
| 57 | } |
| 58 | |
| 59 | //_______________________________________________________________________ |
| 60 | //# define rluget_hijing rluget_hijing_ |
| 61 | //# define rluset_hijing rluset_hijing_ |
| 62 | //# define rlu_hijing rlu_hijing_ |
| 63 | |
| 64 | extern "C" { |
| 65 | |
| 66 | // void rluget_hijing(Int_t & /*lfn*/, Int_t & /*move*/) |
| 67 | //{printf("Dummy version of rluget_hijing reached\n");} |
| 68 | |
| 69 | //void rluset_hijing(Int_t & /*lfn*/, Int_t & /*move*/) |
| 70 | //{printf("Dummy version of rluset_hijing reached\n");} |
| 71 | |
| 72 | //Float_t rlu_hijing(Int_t & /*idum*/) |
| 73 | // { |
| 74 | // Wrapper to FINCTION RLU_HIJING from HIJING |
| 75 | // Uses static method to retrieve the pointer to the (C++) generator |
| 76 | // Double_t r; |
| 77 | // do r=AliDimeRndm::GetDimeRandom()->Rndm(); |
| 78 | // while(0 >= r || r >= 1); |
| 79 | // return (Float_t)r; |
| 80 | // } |
| 81 | } |
git://git.uio.no / u / mrichter / AliRoot.git / blame