source: trunk/yat/utility/Index.h @ 1485

Last change on this file since 1485 was 1485, checked in by Peter, 13 years ago

adding explicit keyword

  • Property svn:eol-style set to native
  • Property svn:keywords set to Id
File size: 2.1 KB
Line 
1#ifndef _theplu_yat_utility_index_
2#define _theplu_yat_utility_index_
3
4// $Id: Index.h 1485 2008-09-09 17:07:03Z peter $
5
6/*
7  Copyright (C) 2008 Peter Johansson
8
9  This file is part of the yat library, http://dev.thep.lu.se/yat
10
11  The yat library is free software; you can redistribute it and/or
12  modify it under the terms of the GNU General Public License as
13  published by the Free Software Foundation; either version 2 of the
14  License, or (at your option) any later version.
15
16  The yat library is distributed in the hope that it will be useful,
17  but WITHOUT ANY WARRANTY; without even the implied warranty of
18  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19  General Public License for more details.
20
21  You should have received a copy of the GNU General Public License
22  along with this program; if not, write to the Free Software
23  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
24  02111-1307, USA.
25*/
26
27#include "SmartPtr.h"
28
29#include <vector>
30
31namespace theplu {
32namespace yat {
33namespace utility {
34
35  ///
36  /// Internal Class keeping track of which samples are support vectors and
37  /// not. The first nof_sv elements in the vector are indices of the
38  /// support vectors
39  ///
40  class Index
41  {
42  public:
43    /**
44       Creates an empty Index
45     */
46    Index(void);
47
48    /**
49       Created Index will satisfy a[i] = i.
50       \param n size of created Index
51    */
52    explicit Index(size_t n);
53
54    /**
55       Constructed Index c will satisfy c[i]=a[b[i]]
56     */
57    Index(const Index& a, const Index& b);
58
59    /**
60       \brief Constructor
61     */
62    explicit Index(const SmartPtr<const std::vector<size_t> >& vec);
63
64    /**
65       \brief Constructor
66
67       vec is copied
68     */
69    explicit Index(const std::vector<size_t>& vec);
70
71    /**
72       \brief access operator
73    */
74    const size_t& operator[](size_t) const;
75
76    /**
77       \brief number of elements
78    */
79    size_t size(void) const;
80
81    /**
82       \return underlying vector
83    */
84    const std::vector<size_t>& vector(void) const;
85
86  private:
87    // using compiler generated copy
88    // Index(const Index&);
89    // const Index& operator=(const Index&);
90
91    SmartPtr<const std::vector<size_t> > index_;
92  };
93
94}}} // of namespace utility, yat, and theplu
95
96#endif
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