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Diffstat (limited to 'test/corners.cpp')
| -rw-r--r-- | test/corners.cpp | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/test/corners.cpp b/test/corners.cpp new file mode 100644 index 000000000..4705c5f05 --- /dev/null +++ b/test/corners.cpp @@ -0,0 +1,98 @@ +// This file is part of Eigen, a lightweight C++ template library +// for linear algebra. +// +// Copyright (C) 2006-2010 Benoit Jacob <jacob.benoit.1@gmail.com> +// +// This Source Code Form is subject to the terms of the Mozilla +// Public License v. 2.0. If a copy of the MPL was not distributed +// with this file, You can obtain one at http://mozilla.org/MPL/2.0/. + +#include "main.h" + +#define COMPARE_CORNER(A,B) \ + VERIFY_IS_EQUAL(matrix.A, matrix.B); \ + VERIFY_IS_EQUAL(const_matrix.A, const_matrix.B); + +template<typename MatrixType> void corners(const MatrixType& m) +{ + typedef typename MatrixType::Index Index; + Index rows = m.rows(); + Index cols = m.cols(); + + Index r = internal::random<Index>(1,rows); + Index c = internal::random<Index>(1,cols); + + MatrixType matrix = MatrixType::Random(rows,cols); + const MatrixType const_matrix = MatrixType::Random(rows,cols); + + COMPARE_CORNER(topLeftCorner(r,c), block(0,0,r,c)); + COMPARE_CORNER(topRightCorner(r,c), block(0,cols-c,r,c)); + COMPARE_CORNER(bottomLeftCorner(r,c), block(rows-r,0,r,c)); + COMPARE_CORNER(bottomRightCorner(r,c), block(rows-r,cols-c,r,c)); + + Index sr = internal::random<Index>(1,rows) - 1; + Index nr = internal::random<Index>(1,rows-sr); + Index sc = internal::random<Index>(1,cols) - 1; + Index nc = internal::random<Index>(1,cols-sc); + + COMPARE_CORNER(topRows(r), block(0,0,r,cols)); + COMPARE_CORNER(middleRows(sr,nr), block(sr,0,nr,cols)); + COMPARE_CORNER(bottomRows(r), block(rows-r,0,r,cols)); + COMPARE_CORNER(leftCols(c), block(0,0,rows,c)); + COMPARE_CORNER(middleCols(sc,nc), block(0,sc,rows,nc)); + COMPARE_CORNER(rightCols(c), block(0,cols-c,rows,c)); +} + +template<typename MatrixType, int CRows, int CCols, int SRows, int SCols> void corners_fixedsize() +{ + MatrixType matrix = MatrixType::Random(); + const MatrixType const_matrix = MatrixType::Random(); + + enum { + rows = MatrixType::RowsAtCompileTime, + cols = MatrixType::ColsAtCompileTime, + r = CRows, + c = CCols, + sr = SRows, + sc = SCols + }; + + VERIFY_IS_EQUAL((matrix.template topLeftCorner<r,c>()), (matrix.template block<r,c>(0,0))); + VERIFY_IS_EQUAL((matrix.template topRightCorner<r,c>()), (matrix.template block<r,c>(0,cols-c))); + VERIFY_IS_EQUAL((matrix.template bottomLeftCorner<r,c>()), (matrix.template block<r,c>(rows-r,0))); + VERIFY_IS_EQUAL((matrix.template bottomRightCorner<r,c>()), (matrix.template block<r,c>(rows-r,cols-c))); + + VERIFY_IS_EQUAL((matrix.template topRows<r>()), (matrix.template block<r,cols>(0,0))); + VERIFY_IS_EQUAL((matrix.template middleRows<r>(sr)), (matrix.template block<r,cols>(sr,0))); + VERIFY_IS_EQUAL((matrix.template bottomRows<r>()), (matrix.template block<r,cols>(rows-r,0))); + VERIFY_IS_EQUAL((matrix.template leftCols<c>()), (matrix.template block<rows,c>(0,0))); + VERIFY_IS_EQUAL((matrix.template middleCols<c>(sc)), (matrix.template block<rows,c>(0,sc))); + VERIFY_IS_EQUAL((matrix.template rightCols<c>()), (matrix.template block<rows,c>(0,cols-c))); + + VERIFY_IS_EQUAL((const_matrix.template topLeftCorner<r,c>()), (const_matrix.template block<r,c>(0,0))); + VERIFY_IS_EQUAL((const_matrix.template topRightCorner<r,c>()), (const_matrix.template block<r,c>(0,cols-c))); + VERIFY_IS_EQUAL((const_matrix.template bottomLeftCorner<r,c>()), (const_matrix.template block<r,c>(rows-r,0))); + VERIFY_IS_EQUAL((const_matrix.template bottomRightCorner<r,c>()), (const_matrix.template block<r,c>(rows-r,cols-c))); + + VERIFY_IS_EQUAL((const_matrix.template topRows<r>()), (const_matrix.template block<r,cols>(0,0))); + VERIFY_IS_EQUAL((const_matrix.template middleRows<r>(sr)), (const_matrix.template block<r,cols>(sr,0))); + VERIFY_IS_EQUAL((const_matrix.template bottomRows<r>()), (const_matrix.template block<r,cols>(rows-r,0))); + VERIFY_IS_EQUAL((const_matrix.template leftCols<c>()), (const_matrix.template block<rows,c>(0,0))); + VERIFY_IS_EQUAL((const_matrix.template middleCols<c>(sc)), (const_matrix.template block<rows,c>(0,sc))); + VERIFY_IS_EQUAL((const_matrix.template rightCols<c>()), (const_matrix.template block<rows,c>(0,cols-c))); +} + +void test_corners() +{ + for(int i = 0; i < g_repeat; i++) { + CALL_SUBTEST_1( corners(Matrix<float, 1, 1>()) ); + CALL_SUBTEST_2( corners(Matrix4d()) ); + CALL_SUBTEST_3( corners(Matrix<int,10,12>()) ); + CALL_SUBTEST_4( corners(MatrixXcf(5, 7)) ); + CALL_SUBTEST_5( corners(MatrixXf(21, 20)) ); + + CALL_SUBTEST_1(( corners_fixedsize<Matrix<float, 1, 1>, 1, 1, 0, 0>() )); + CALL_SUBTEST_2(( corners_fixedsize<Matrix4d,2,2,1,1>() )); + CALL_SUBTEST_3(( corners_fixedsize<Matrix<int,10,12>,4,7,5,2>() )); + } +} |