1 | // This file is part of Eigen, a lightweight C++ template library
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2 | // for linear algebra.
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3 | //
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4 | // Copyright (C) 2006-2010 Benoit Jacob <jacob.benoit.1@gmail.com>
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5 | //
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6 | // This Source Code Form is subject to the terms of the Mozilla
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7 | // Public License v. 2.0. If a copy of the MPL was not distributed
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8 | // with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
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9 |
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10 | #include "main.h"
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11 |
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12 | #define COMPARE_CORNER(A,B) \
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13 | VERIFY_IS_EQUAL(matrix.A, matrix.B); \
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14 | VERIFY_IS_EQUAL(const_matrix.A, const_matrix.B);
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15 |
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16 | template<typename MatrixType> void corners(const MatrixType& m)
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17 | {
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18 | typedef typename MatrixType::Index Index;
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19 | Index rows = m.rows();
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20 | Index cols = m.cols();
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21 |
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22 | Index r = internal::random<Index>(1,rows);
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23 | Index c = internal::random<Index>(1,cols);
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24 |
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25 | MatrixType matrix = MatrixType::Random(rows,cols);
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26 | const MatrixType const_matrix = MatrixType::Random(rows,cols);
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27 |
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28 | COMPARE_CORNER(topLeftCorner(r,c), block(0,0,r,c));
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29 | COMPARE_CORNER(topRightCorner(r,c), block(0,cols-c,r,c));
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30 | COMPARE_CORNER(bottomLeftCorner(r,c), block(rows-r,0,r,c));
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31 | COMPARE_CORNER(bottomRightCorner(r,c), block(rows-r,cols-c,r,c));
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32 |
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33 | Index sr = internal::random<Index>(1,rows) - 1;
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34 | Index nr = internal::random<Index>(1,rows-sr);
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35 | Index sc = internal::random<Index>(1,cols) - 1;
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36 | Index nc = internal::random<Index>(1,cols-sc);
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37 |
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38 | COMPARE_CORNER(topRows(r), block(0,0,r,cols));
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39 | COMPARE_CORNER(middleRows(sr,nr), block(sr,0,nr,cols));
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40 | COMPARE_CORNER(bottomRows(r), block(rows-r,0,r,cols));
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41 | COMPARE_CORNER(leftCols(c), block(0,0,rows,c));
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42 | COMPARE_CORNER(middleCols(sc,nc), block(0,sc,rows,nc));
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43 | COMPARE_CORNER(rightCols(c), block(0,cols-c,rows,c));
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44 | }
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45 |
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46 | template<typename MatrixType, int CRows, int CCols, int SRows, int SCols> void corners_fixedsize()
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47 | {
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48 | MatrixType matrix = MatrixType::Random();
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49 | const MatrixType const_matrix = MatrixType::Random();
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50 |
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51 | enum {
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52 | rows = MatrixType::RowsAtCompileTime,
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53 | cols = MatrixType::ColsAtCompileTime,
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54 | r = CRows,
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55 | c = CCols,
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56 | sr = SRows,
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57 | sc = SCols
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58 | };
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59 |
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60 | VERIFY_IS_EQUAL((matrix.template topLeftCorner<r,c>()), (matrix.template block<r,c>(0,0)));
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61 | VERIFY_IS_EQUAL((matrix.template topRightCorner<r,c>()), (matrix.template block<r,c>(0,cols-c)));
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62 | VERIFY_IS_EQUAL((matrix.template bottomLeftCorner<r,c>()), (matrix.template block<r,c>(rows-r,0)));
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63 | VERIFY_IS_EQUAL((matrix.template bottomRightCorner<r,c>()), (matrix.template block<r,c>(rows-r,cols-c)));
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64 |
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65 | VERIFY_IS_EQUAL((matrix.template topLeftCorner<r,c>()), (matrix.template topLeftCorner<r,Dynamic>(r,c)));
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66 | VERIFY_IS_EQUAL((matrix.template topRightCorner<r,c>()), (matrix.template topRightCorner<r,Dynamic>(r,c)));
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67 | VERIFY_IS_EQUAL((matrix.template bottomLeftCorner<r,c>()), (matrix.template bottomLeftCorner<r,Dynamic>(r,c)));
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68 | VERIFY_IS_EQUAL((matrix.template bottomRightCorner<r,c>()), (matrix.template bottomRightCorner<r,Dynamic>(r,c)));
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69 |
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70 | VERIFY_IS_EQUAL((matrix.template topLeftCorner<r,c>()), (matrix.template topLeftCorner<Dynamic,c>(r,c)));
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71 | VERIFY_IS_EQUAL((matrix.template topRightCorner<r,c>()), (matrix.template topRightCorner<Dynamic,c>(r,c)));
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72 | VERIFY_IS_EQUAL((matrix.template bottomLeftCorner<r,c>()), (matrix.template bottomLeftCorner<Dynamic,c>(r,c)));
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73 | VERIFY_IS_EQUAL((matrix.template bottomRightCorner<r,c>()), (matrix.template bottomRightCorner<Dynamic,c>(r,c)));
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74 |
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75 | VERIFY_IS_EQUAL((matrix.template topRows<r>()), (matrix.template block<r,cols>(0,0)));
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76 | VERIFY_IS_EQUAL((matrix.template middleRows<r>(sr)), (matrix.template block<r,cols>(sr,0)));
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77 | VERIFY_IS_EQUAL((matrix.template bottomRows<r>()), (matrix.template block<r,cols>(rows-r,0)));
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78 | VERIFY_IS_EQUAL((matrix.template leftCols<c>()), (matrix.template block<rows,c>(0,0)));
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79 | VERIFY_IS_EQUAL((matrix.template middleCols<c>(sc)), (matrix.template block<rows,c>(0,sc)));
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80 | VERIFY_IS_EQUAL((matrix.template rightCols<c>()), (matrix.template block<rows,c>(0,cols-c)));
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81 |
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82 | VERIFY_IS_EQUAL((const_matrix.template topLeftCorner<r,c>()), (const_matrix.template block<r,c>(0,0)));
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83 | VERIFY_IS_EQUAL((const_matrix.template topRightCorner<r,c>()), (const_matrix.template block<r,c>(0,cols-c)));
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84 | VERIFY_IS_EQUAL((const_matrix.template bottomLeftCorner<r,c>()), (const_matrix.template block<r,c>(rows-r,0)));
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85 | VERIFY_IS_EQUAL((const_matrix.template bottomRightCorner<r,c>()), (const_matrix.template block<r,c>(rows-r,cols-c)));
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86 |
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87 | VERIFY_IS_EQUAL((const_matrix.template topLeftCorner<r,c>()), (const_matrix.template topLeftCorner<r,Dynamic>(r,c)));
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88 | VERIFY_IS_EQUAL((const_matrix.template topRightCorner<r,c>()), (const_matrix.template topRightCorner<r,Dynamic>(r,c)));
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89 | VERIFY_IS_EQUAL((const_matrix.template bottomLeftCorner<r,c>()), (const_matrix.template bottomLeftCorner<r,Dynamic>(r,c)));
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90 | VERIFY_IS_EQUAL((const_matrix.template bottomRightCorner<r,c>()), (const_matrix.template bottomRightCorner<r,Dynamic>(r,c)));
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91 |
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92 | VERIFY_IS_EQUAL((const_matrix.template topLeftCorner<r,c>()), (const_matrix.template topLeftCorner<Dynamic,c>(r,c)));
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93 | VERIFY_IS_EQUAL((const_matrix.template topRightCorner<r,c>()), (const_matrix.template topRightCorner<Dynamic,c>(r,c)));
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94 | VERIFY_IS_EQUAL((const_matrix.template bottomLeftCorner<r,c>()), (const_matrix.template bottomLeftCorner<Dynamic,c>(r,c)));
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95 | VERIFY_IS_EQUAL((const_matrix.template bottomRightCorner<r,c>()), (const_matrix.template bottomRightCorner<Dynamic,c>(r,c)));
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96 |
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97 | VERIFY_IS_EQUAL((const_matrix.template topRows<r>()), (const_matrix.template block<r,cols>(0,0)));
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98 | VERIFY_IS_EQUAL((const_matrix.template middleRows<r>(sr)), (const_matrix.template block<r,cols>(sr,0)));
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99 | VERIFY_IS_EQUAL((const_matrix.template bottomRows<r>()), (const_matrix.template block<r,cols>(rows-r,0)));
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100 | VERIFY_IS_EQUAL((const_matrix.template leftCols<c>()), (const_matrix.template block<rows,c>(0,0)));
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101 | VERIFY_IS_EQUAL((const_matrix.template middleCols<c>(sc)), (const_matrix.template block<rows,c>(0,sc)));
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102 | VERIFY_IS_EQUAL((const_matrix.template rightCols<c>()), (const_matrix.template block<rows,c>(0,cols-c)));
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103 | }
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104 |
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105 | void test_corners()
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106 | {
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107 | for(int i = 0; i < g_repeat; i++) {
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108 | CALL_SUBTEST_1( corners(Matrix<float, 1, 1>()) );
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109 | CALL_SUBTEST_2( corners(Matrix4d()) );
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110 | CALL_SUBTEST_3( corners(Matrix<int,10,12>()) );
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111 | CALL_SUBTEST_4( corners(MatrixXcf(5, 7)) );
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112 | CALL_SUBTEST_5( corners(MatrixXf(21, 20)) );
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113 |
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114 | CALL_SUBTEST_1(( corners_fixedsize<Matrix<float, 1, 1>, 1, 1, 0, 0>() ));
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115 | CALL_SUBTEST_2(( corners_fixedsize<Matrix4d,2,2,1,1>() ));
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116 | CALL_SUBTEST_3(( corners_fixedsize<Matrix<int,10,12>,4,7,5,2>() ));
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117 | }
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118 | }
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