1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
18 ///////////////////////////////////////////////////////////////////////////////
21 ///////////////////////////////////////////////////////////////////////////////
32 //_______________________________________________________________________
41 //_______________________________________________________________________
42 AliRndm::AliRndm(const AliRndm& rn):
51 //_______________________________________________________________________
52 void AliRndm::Copy(AliRndm&) const
54 ::Fatal("Copy","Not implemented\n");
58 //_____________________________________________________________________________
59 void AliRndm::Rndm(Float_t* array, Int_t size) const
62 // Return an array of n random numbers uniformly distributed
63 // between 0 and 1 not included
65 for(Int_t i=0; i<size; i++)
67 array[i]=fRandom->Rndm();
69 do array[i]=fRandom->Rndm(); while(0>=array[i] || array[i]>=1);
73 //_____________________________________________________________________________
74 void AliRndm::ReadRandom(const char *filename)
77 // Reads saved random generator status from filename
79 char *fntmp = gSystem->ExpandPathName(filename);
80 TFile *file = new TFile(fntmp,"r");
83 printf("AliRndm:: Could not open file %s\n",filename);
85 if(!fRandom) fRandom = new TRandom();
86 fRandom->Read("Random");
92 //_____________________________________________________________________________
93 void AliRndm::WriteRandom(const char *filename) const
96 // Writes random generator status to filename
98 char *fntmp = gSystem->ExpandPathName(filename);
99 TFile *file = new TFile(fntmp,"new");
102 printf("AliRndm:: Could not open file %s\n",filename);