A pointer was set to zero in the default constructor to avoid memory management problems
[u/mrichter/AliRoot.git] / TRD / AliTRDtimeBin.cxx
CommitLineData
46d29e70 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/*
17$Log$
0e9c2ad5 18Revision 1.2 2000/10/06 16:49:46 cblume
19Made Getters const
20
46d29e70 21Revision 1.1.2.2 2000/10/04 16:34:58 cblume
22Replace include files by forward declarations
23
24Revision 1.1.2.1 2000/09/22 14:47:52 cblume
25Add the tracking code
26
27*/
28
29#include "AliTRDcluster.h"
46d29e70 30#include "AliTRDtimeBin.h"
31
32ClassImp(AliTRDtimeBin)
33
34//______________________________________________________
35
36void AliTRDtimeBin::InsertCluster(AliTRDcluster* c, UInt_t index) {
37
38// Insert cluster in TimeBin cluster array.
39// Clusters are sorted according to Y coordinate.
40
41 if (fN==kMAX_CLUSTER_PER_TIME_BIN) {
42 printf("AliTRDtimeBin::InsertCluster(): Too many clusters !\n");
43 return;
44 }
45 if (fN==0) {fIndex[0]=index; fClusters[fN++]=c; return;}
46 Int_t i=Find(c->GetY());
47 memmove(fClusters+i+1 ,fClusters+i,(fN-i)*sizeof(AliTRDcluster*));
48 memmove(fIndex +i+1 ,fIndex +i,(fN-i)*sizeof(UInt_t));
49 fIndex[i]=index; fClusters[i]=c; fN++;
50}
51
52//______________________________________________________
53
54Int_t AliTRDtimeBin::Find(Double_t y) const {
55
56// Returns index of the cluster nearest in Y
57
58 if (y <= fClusters[0]->GetY()) return 0;
59 if (y > fClusters[fN-1]->GetY()) return fN;
60 Int_t b=0, e=fN-1, m=(b+e)/2;
61 for (; b<e; m=(b+e)/2) {
62 if (y > fClusters[m]->GetY()) b=m+1;
63 else e=m;
64 }
65 return m;
66}
67
68//______________________________________________________
69AliTRDcluster *AliTRDtimeBin::operator[](Int_t i)
70{
71 //
72 // Index operator
73 //
74
75 return fClusters[i];
76
77}