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ArrayEqualityComparison.cpp
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1 ///////////////////////////////////////////////////////////////////////////////
2 //
3 // File ArrayEqualityComparison.cpp
4 //
5 // For more information, please see: http://www.nektar.info
6 //
7 // The MIT License
8 //
9 // Copyright (c) 2006 Scientific Computing and Imaging Institute,
10 // University of Utah (USA) and Department of Aeronautics, Imperial
11 // College London (UK).
12 //
13 // License for the specific language governing rights and limitations under
14 // Permission is hereby granted, free of charge, to any person obtaining a
15 // copy of this software and associated documentation files (the "Software"),
16 // to deal in the Software without restriction, including without limitation
17 // the rights to use, copy, modify, merge, publish, distribute, sublicense,
18 // and/or sell copies of the Software, and to permit persons to whom the
19 // Software is furnished to do so, subject to the following conditions:
20 //
21 // The above copyright notice and this permission notice shall be included
22 // in all copies or substantial portions of the Software.
23 //
24 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
25 // OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
26 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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29 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
30 // DEALINGS IN THE SOFTWARE.
31 //
32 // Description:
33 //
34 ///////////////////////////////////////////////////////////////////////////////
36 
37 namespace Nektar
38 {
39  bool operator==(const Array<OneD, NekDouble>& lhs, const Array<OneD, NekDouble>& rhs)
40  {
41  return IsEqual(lhs,rhs);
42  }
43 
44 
45  bool IsEqual(const Array<OneD, const NekDouble>& lhs,
46  const Array<OneD, const NekDouble>& rhs,
47  NekDouble tol)
48  {
49  if( lhs.num_elements() != rhs.num_elements() )
50  {
51  return false;
52  }
53 
54  if( lhs.data() == rhs.data() )
55  {
56  return true;
57  }
58 
59  for(unsigned int i = 0; i < lhs.num_elements(); ++i)
60  {
61  if( fabs(lhs[i]-rhs[i]) > tol )
62  {
63  return false;
64  }
65  }
66 
67  return true;
68  }
69 
70 
71  bool operator==(const Array<TwoD, NekDouble>& lhs, const Array<TwoD, NekDouble>& rhs)
72  {
73  return IsEqual(lhs,rhs);
74  }
75 
76  bool IsEqual(const Array<TwoD, const NekDouble>& lhs,
77  const Array<TwoD, const NekDouble>& rhs,
78  NekDouble tol)
79  {
80  if( (lhs.GetRows() != rhs.GetRows()) ||
81  (lhs.GetColumns() != rhs.GetColumns()) )
82  {
83  return false;
84  }
85 
86  if( lhs.data() == rhs.data() )
87  {
88  return true;
89  }
90 
91  for(unsigned int i = 0; i < lhs.GetRows(); ++i)
92  {
93  for(unsigned int j = 0; j < lhs.GetColumns(); ++j)
94  {
95  if( fabs(lhs[i][j]-rhs[i][j]) > tol )
96  {
97  return false;
98  }
99  }
100  }
101 
102  return true;
103  }
104 }