4 // Copyright (C) 2006-2008 Benoit Jacob <jacob.benoit.1@gmail.com>
16 template<typename MatrixType> void reverse(const MatrixType& m)  in reverse()  function
29   MatrixType m1_r = m1.reverse();  in reverse()
30   // Verify that MatrixBase::reverse() works  in reverse()
33       VERIFY_IS_APPROX(m1_r(i, j), m1(rows - 1 - i, cols - 1 - j));  in reverse()
37   Reverse<MatrixType> m1_rd(m1);  in reverse()
38   // Verify that a Reverse default (in both directions) of an expression works  in reverse()
41       VERIFY_IS_APPROX(m1_rd(i, j), m1(rows - 1 - i, cols - 1 - j));  in reverse()
45   Reverse<MatrixType, BothDirections> m1_rb(m1);  in reverse()
46   // Verify that a Reverse in both directions of an expression works  in reverse()
49       VERIFY_IS_APPROX(m1_rb(i, j), m1(rows - 1 - i, cols - 1 - j));  in reverse()
53   Reverse<MatrixType, Vertical> m1_rv(m1);  in reverse()
54   // Verify that a Reverse in the vertical directions of an expression works  in reverse()
57       VERIFY_IS_APPROX(m1_rv(i, j), m1(rows - 1 - i, j));  in reverse()
61   Reverse<MatrixType, Horizontal> m1_rh(m1);  in reverse()
62   // Verify that a Reverse in the horizontal directions of an expression works  in reverse()
65       VERIFY_IS_APPROX(m1_rh(i, j), m1(i, cols - 1 - j));  in reverse()
69   VectorType v1_r = v1.reverse();  in reverse()
70   // Verify that a VectorType::reverse() of an expression works  in reverse()
72     VERIFY_IS_APPROX(v1_r(i), v1(rows - 1 - i));  in reverse()
75   MatrixType m1_cr = m1.colwise().reverse();  in reverse()
76   // Verify that PartialRedux::reverse() works (for colwise())  in reverse()
79       VERIFY_IS_APPROX(m1_cr(i, j), m1(rows - 1 - i, j));  in reverse()
83   MatrixType m1_rr = m1.rowwise().reverse();  in reverse()
84   // Verify that PartialRedux::reverse() works (for rowwise())  in reverse()
87       VERIFY_IS_APPROX(m1_rr(i, j), m1(i, cols - 1 - j));  in reverse()
93   Index r = internal::random<Index>(0, rows-1),  in reverse()
94         c = internal::random<Index>(0, cols-1);  in reverse()
96   m1.reverse()(r, c) = x;  in reverse()
97   VERIFY_IS_APPROX(x, m1(rows - 1 - r, cols - 1 - c));  in reverse()
101   VERIFY_IS_APPROX(m2,m1.reverse().eval());  in reverse()
105   VERIFY_IS_APPROX(m2.col(0),m1.col(0).reverse().eval());  in reverse()
109   VERIFY_IS_APPROX(m2.row(0),m1.row(0).reverse().eval());  in reverse()
113   VERIFY_IS_APPROX(m2,m1.rowwise().reverse().eval());  in reverse()
117   VERIFY_IS_APPROX(m2,m1.colwise().reverse().eval());  in reverse()
119   m1.colwise().reverse()(r, c) = x;  in reverse()
120   VERIFY_IS_APPROX(x, m1(rows - 1 - r, c));  in reverse()
122   m1.rowwise().reverse()(r, c) = x;  in reverse()
123   VERIFY_IS_APPROX(x, m1(r, cols - 1 - c));  in reverse()
131   VERIFY(x.reverse()[1] == 3);  in array_reverse_extra()
132   VERIFY(x.reverse() == y);  in array_reverse_extra()
136 // in clang 6/7 with -O2 and AVX or AVX512 enabled.
138 // through mis-inlining of reverseInPlace or other minor changes.
180   VERIFY_IS_APPROX(m2, m1.rowwise().reverse().eval());  in bug1684()
182   VERIFY_IS_APPROX(m2, m1.rowwise().reverse().eval());  in bug1684()
186   // VERIFY_IS_APPROX(m2, m1.rowwise().reverse().eval());  in bug1684()
192     CALL_SUBTEST_1( reverse(Matrix<float, 1, 1>()) );  in EIGEN_DECLARE_TEST()
193     CALL_SUBTEST_2( reverse(Matrix2f()) );  in EIGEN_DECLARE_TEST()
194     CALL_SUBTEST_3( reverse(Matrix4f()) );  in EIGEN_DECLARE_TEST()
195     CALL_SUBTEST_4( reverse(Matrix4d()) );  in EIGEN_DECLARE_TEST()
196 …CALL_SUBTEST_5( reverse(MatrixXcf(internal::random<int>(1,EIGEN_TEST_MAX_SIZE), internal::random<i…  in EIGEN_DECLARE_TEST()
197 …CALL_SUBTEST_6( reverse(MatrixXi(internal::random<int>(1,EIGEN_TEST_MAX_SIZE), internal::random<in…  in EIGEN_DECLARE_TEST()
198 …CALL_SUBTEST_7( reverse(MatrixXcd(internal::random<int>(1,EIGEN_TEST_MAX_SIZE), internal::random<i…  in EIGEN_DECLARE_TEST()
199     CALL_SUBTEST_8( reverse(Matrix<float, 100, 100>()) );  in EIGEN_DECLARE_TEST()
200 …CALL_SUBTEST_9( reverse(Matrix<float,Dynamic,Dynamic,RowMajor>(internal::random<int>(1,EIGEN_TEST_…  in EIGEN_DECLARE_TEST()