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