1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile: itkOneWayEquivalencyTable.cxx,v $
Language: C++
Date: $Date: 2007-12-23 17:59:29 $
Version: $Revision: 1.7 $
Copyright (c) Insight Software Consortium. All rights reserved.
See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#include "itkOneWayEquivalencyTable.h"
namespace itk
{
bool OneWayEquivalencyTable::Add(unsigned long a, unsigned long b)
{
//
// Unlike EquivalencyTable, the order of the equivalence is important.
//
std::pair<Iterator, bool> result;
if (a == b) return false;
result = m_HashMap.insert( ValueType(a, b) );
return result.second;
}
//void OneWayEquivalencyTable::PrintHashTable()
//{
// ConstIterator it = this->Begin();
// while (it != this->End() )
// {
// std::cout << (*it).first << " = " << (*it).second << std::endl;
// it++;
// }
//}
void OneWayEquivalencyTable::Flatten()
{
Iterator it = this->Begin();
while ( it != this->End() )
{
(*it).second = this->RecursiveLookup((*it).first);
it++;
}
}
unsigned long OneWayEquivalencyTable::RecursiveLookup(const unsigned long a) const
{
unsigned long ans = a;
unsigned long last_ans=a;
ConstIterator it;
ConstIterator hashEnd = m_HashMap.end();
while ( (it = m_HashMap.find(ans)) != hashEnd )
{
ans = (*it).second;
if (ans == a ) return last_ans; // about to cycle again.
last_ans = ans;
}
return ans;
}
void
OneWayEquivalencyTable
::PrintSelf(std::ostream& os, Indent indent) const
{
Superclass::PrintSelf(os,indent);
}
}// end namespace itk
|
