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[u/mrichter/AliRoot.git] / STEER / AliMergeCombi.cxx
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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//
20// AliMergeCombi.cxx
21// class to
22// return combinations of input event numbers
23//
24////////////////////////////////////////////////////////////////////////
25
26#include "AliMergeCombi.h"
27
28ClassImp(AliMergeCombi)
29
30//_______________________________________________________________________
31AliMergeCombi::AliMergeCombi():
32 fDim(1),
33 fSperb(1),
34 fCounter(0)
35{
36 //
37 // default ctor
38 //
39}
40
41//_______________________________________________________________________
42AliMergeCombi::AliMergeCombi(Int_t dim, Int_t sperb):
43 fDim(dim),
44 fSperb(sperb),
45 fCounter(0)
46{
47 //
48 // Standard ctor
49 //
50}
51
52//_______________________________________________________________________
53AliMergeCombi::~AliMergeCombi()
54{
55 // default dtor
56}
57
58//_______________________________________________________________________
59Bool_t AliMergeCombi::Combination(Int_t /* evNumber */ [], Int_t delta[])
60{
61 //
62 // Combination method
63 //
64 delta[0] = 1;
65 for (Int_t i=1; i<fDim; i++) {
66 if (fCounter%fSperb == 0) {
67 delta[i] = 1;
68 } else {
69 delta[i] = 0;
70 }
71 fCounter++;
72 }
73 return kTRUE;
74}