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Diffstat (limited to 'eigen/test/linearstructure.cpp')
| -rw-r--r-- | eigen/test/linearstructure.cpp | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/eigen/test/linearstructure.cpp b/eigen/test/linearstructure.cpp new file mode 100644 index 0000000..618984d --- /dev/null +++ b/eigen/test/linearstructure.cpp @@ -0,0 +1,84 @@ +// This file is part of Eigen, a lightweight C++ template library +// for linear algebra. +// +// Copyright (C) 2006-2008 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" + +template<typename MatrixType> void linearStructure(const MatrixType& m) +{ + using std::abs; + /* this test covers the following files: + CwiseUnaryOp.h, CwiseBinaryOp.h, SelfCwiseBinaryOp.h + */ + typedef typename MatrixType::Index Index; + typedef typename MatrixType::Scalar Scalar; + + Index rows = m.rows(); + Index cols = m.cols(); + + // this test relies a lot on Random.h, and there's not much more that we can do + // to test it, hence I consider that we will have tested Random.h + MatrixType m1 = MatrixType::Random(rows, cols), + m2 = MatrixType::Random(rows, cols), + m3(rows, cols); + + Scalar s1 = internal::random<Scalar>(); + while (abs(s1)<1e-3) s1 = internal::random<Scalar>(); + + Index r = internal::random<Index>(0, rows-1), + c = internal::random<Index>(0, cols-1); + + VERIFY_IS_APPROX(-(-m1), m1); + VERIFY_IS_APPROX(m1+m1, 2*m1); + VERIFY_IS_APPROX(m1+m2-m1, m2); + VERIFY_IS_APPROX(-m2+m1+m2, m1); + VERIFY_IS_APPROX(m1*s1, s1*m1); + VERIFY_IS_APPROX((m1+m2)*s1, s1*m1+s1*m2); + VERIFY_IS_APPROX((-m1+m2)*s1, -s1*m1+s1*m2); + m3 = m2; m3 += m1; + VERIFY_IS_APPROX(m3, m1+m2); + m3 = m2; m3 -= m1; + VERIFY_IS_APPROX(m3, m2-m1); + m3 = m2; m3 *= s1; + VERIFY_IS_APPROX(m3, s1*m2); + if(!NumTraits<Scalar>::IsInteger) + { + m3 = m2; m3 /= s1; + VERIFY_IS_APPROX(m3, m2/s1); + } + + // again, test operator() to check const-qualification + VERIFY_IS_APPROX((-m1)(r,c), -(m1(r,c))); + VERIFY_IS_APPROX((m1-m2)(r,c), (m1(r,c))-(m2(r,c))); + VERIFY_IS_APPROX((m1+m2)(r,c), (m1(r,c))+(m2(r,c))); + VERIFY_IS_APPROX((s1*m1)(r,c), s1*(m1(r,c))); + VERIFY_IS_APPROX((m1*s1)(r,c), (m1(r,c))*s1); + if(!NumTraits<Scalar>::IsInteger) + VERIFY_IS_APPROX((m1/s1)(r,c), (m1(r,c))/s1); + + // use .block to disable vectorization and compare to the vectorized version + VERIFY_IS_APPROX(m1+m1.block(0,0,rows,cols), m1+m1); + VERIFY_IS_APPROX(m1.cwiseProduct(m1.block(0,0,rows,cols)), m1.cwiseProduct(m1)); + VERIFY_IS_APPROX(m1 - m1.block(0,0,rows,cols), m1 - m1); + VERIFY_IS_APPROX(m1.block(0,0,rows,cols) * s1, m1 * s1); +} + +void test_linearstructure() +{ + for(int i = 0; i < g_repeat; i++) { + CALL_SUBTEST_1( linearStructure(Matrix<float, 1, 1>()) ); + CALL_SUBTEST_2( linearStructure(Matrix2f()) ); + CALL_SUBTEST_3( linearStructure(Vector3d()) ); + CALL_SUBTEST_4( linearStructure(Matrix4d()) ); + CALL_SUBTEST_5( linearStructure(MatrixXcf(internal::random<int>(1,EIGEN_TEST_MAX_SIZE/2), internal::random<int>(1,EIGEN_TEST_MAX_SIZE/2))) ); + CALL_SUBTEST_6( linearStructure(MatrixXf (internal::random<int>(1,EIGEN_TEST_MAX_SIZE), internal::random<int>(1,EIGEN_TEST_MAX_SIZE))) ); + CALL_SUBTEST_7( linearStructure(MatrixXi (internal::random<int>(1,EIGEN_TEST_MAX_SIZE), internal::random<int>(1,EIGEN_TEST_MAX_SIZE))) ); + CALL_SUBTEST_8( linearStructure(MatrixXcd(internal::random<int>(1,EIGEN_TEST_MAX_SIZE/2), internal::random<int>(1,EIGEN_TEST_MAX_SIZE/2))) ); + CALL_SUBTEST_9( linearStructure(ArrayXXf (internal::random<int>(1,EIGEN_TEST_MAX_SIZE), internal::random<int>(1,EIGEN_TEST_MAX_SIZE))) ); + } +} |