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source: svn/trunk/Utilities/Fastjet/plugins/SISCone/interface/reference.h@ 103

Last change on this file since 103 was 11, checked in by severine ovyn, 16 years ago

Fastjet added; CDFCones directory has been changed

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1// -*- C++ -*-
2///////////////////////////////////////////////////////////////////////////////
3// File: reference.h //
4// Description: header file for checkxor management (Creference class) //
5// This file is part of the SISCone project. //
6// For more details, see http://projects.hepforge.org/siscone //
7// //
8// Copyright (c) 2006 Gavin Salam and Gregory Soyez //
9// //
10// This program is free software; you can redistribute it and/or modify //
11// it under the terms of the GNU General Public License as published by //
12// the Free Software Foundation; either version 2 of the License, or //
13// (at your option) any later version. //
14// //
15// This program is distributed in the hope that it will be useful, //
16// but WITHOUT ANY WARRANTY; without even the implied warranty of //
17// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
18// GNU General Public License for more details. //
19// //
20// You should have received a copy of the GNU General Public License //
21// along with this program; if not, write to the Free Software //
22// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA //
23// //
24// $Revision: 1.1 $//
25// $Date: 2008-11-06 14:32:12 $//
26///////////////////////////////////////////////////////////////////////////////
27
28#ifndef __REFERENCE_H__
29#define __REFERENCE_H__
30
31namespace siscone{
32
33/**
34 * \class Creference
35 * \brief references used for checksums.
36 *
37 * This class implements some reference variable
38 * that can be used for checksums. Those checksums
39 * are useful to disentengle between contents of two
40 * cones without looking into their explicit particle
41 * contents.
42 */
43class Creference{
44 public:
45 /// default constructor
46 Creference();
47
48 /// create a random reference
49 void randomize();
50
51 /// test emptyness
52 bool is_empty();
53
54 /// test non-emptyness
55 bool not_empty();
56
57 /// assignment of reference
58 Creference& operator = (const Creference &r);
59
60 /// addition of reference
61 Creference operator + (const Creference &r);
62
63 /// incrementation of reference
64 Creference& operator += (const Creference &r);
65
66 /// decrementation of reference
67 Creference& operator -= (const Creference &r);
68
69 /// accessing the reference
70 inline unsigned int operator[] (int i) {return ref[i];}
71
72 unsigned int ref[3]; ///< actual data for the reference
73};
74
75/// addition of two references
76Creference operator + (Creference &r1, Creference &r2);
77
78/// equality test of two references
79bool operator == (const Creference &r1, const Creference &r2);
80
81/// difference test of two references
82bool operator != (const Creference &r1, const Creference &r2);
83
84/// ordering of two references
85bool operator < (const Creference &r1, const Creference &r2);
86
87
88//=============== inline material ================
89
90// equality test for two references
91//----------------------------------
92inline bool operator == (const Creference &r1, const Creference &r2){
93 return (r1.ref[0]==r2.ref[0]) && (r1.ref[1]==r2.ref[1]) && (r1.ref[2]==r2.ref[2]);
94}
95
96// difference test for two references
97//----------------------------------
98inline bool operator != (const Creference &r1, const Creference &r2){
99 return (r1.ref[0]!=r2.ref[0]) || (r1.ref[1]!=r2.ref[1]) || (r1.ref[2]!=r2.ref[2]);
100}
101
102// difference test for two references
103//----------------------------------
104inline bool operator < (const Creference &r1, const Creference &r2){
105 return (r1.ref[0]<r2.ref[0]) || ((r1.ref[0]==r2.ref[0]) &&
106 ((r1.ref[1]<r2.ref[1]) || ((r1.ref[1]==r2.ref[1]) && (r1.ref[2]<r2.ref[2]))
107 ));
108}
109
110}
111#endif
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