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Diffstat (limited to 'eigen/test/inplace_decomposition.cpp')
-rw-r--r-- | eigen/test/inplace_decomposition.cpp | 110 |
1 files changed, 0 insertions, 110 deletions
diff --git a/eigen/test/inplace_decomposition.cpp b/eigen/test/inplace_decomposition.cpp deleted file mode 100644 index 92d0d91..0000000 --- a/eigen/test/inplace_decomposition.cpp +++ /dev/null @@ -1,110 +0,0 @@ -// This file is part of Eigen, a lightweight C++ template library -// for linear algebra. -// -// Copyright (C) 2016 Gael Guennebaud <gael.guennebaud@inria.fr> -// -// 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" -#include <Eigen/LU> -#include <Eigen/Cholesky> -#include <Eigen/QR> - -// This file test inplace decomposition through Ref<>, as supported by Cholesky, LU, and QR decompositions. - -template<typename DecType,typename MatrixType> void inplace(bool square = false, bool SPD = false) -{ - typedef typename MatrixType::Scalar Scalar; - typedef Matrix<Scalar, MatrixType::RowsAtCompileTime, 1> RhsType; - typedef Matrix<Scalar, MatrixType::ColsAtCompileTime, 1> ResType; - - Index rows = MatrixType::RowsAtCompileTime==Dynamic ? internal::random<Index>(2,EIGEN_TEST_MAX_SIZE/2) : Index(MatrixType::RowsAtCompileTime); - Index cols = MatrixType::ColsAtCompileTime==Dynamic ? (square?rows:internal::random<Index>(2,rows)) : Index(MatrixType::ColsAtCompileTime); - - MatrixType A = MatrixType::Random(rows,cols); - RhsType b = RhsType::Random(rows); - ResType x(cols); - - if(SPD) - { - assert(square); - A.topRows(cols) = A.topRows(cols).adjoint() * A.topRows(cols); - A.diagonal().array() += 1e-3; - } - - MatrixType A0 = A; - MatrixType A1 = A; - - DecType dec(A); - - // Check that the content of A has been modified - VERIFY_IS_NOT_APPROX( A, A0 ); - - // Check that the decomposition is correct: - if(rows==cols) - { - VERIFY_IS_APPROX( A0 * (x = dec.solve(b)), b ); - } - else - { - VERIFY_IS_APPROX( A0.transpose() * A0 * (x = dec.solve(b)), A0.transpose() * b ); - } - - // Check that modifying A breaks the current dec: - A.setRandom(); - if(rows==cols) - { - VERIFY_IS_NOT_APPROX( A0 * (x = dec.solve(b)), b ); - } - else - { - VERIFY_IS_NOT_APPROX( A0.transpose() * A0 * (x = dec.solve(b)), A0.transpose() * b ); - } - - // Check that calling compute(A1) does not modify A1: - A = A0; - dec.compute(A1); - VERIFY_IS_EQUAL(A0,A1); - VERIFY_IS_NOT_APPROX( A, A0 ); - if(rows==cols) - { - VERIFY_IS_APPROX( A0 * (x = dec.solve(b)), b ); - } - else - { - VERIFY_IS_APPROX( A0.transpose() * A0 * (x = dec.solve(b)), A0.transpose() * b ); - } -} - - -void test_inplace_decomposition() -{ - EIGEN_UNUSED typedef Matrix<double,4,3> Matrix43d; - for(int i = 0; i < g_repeat; i++) { - CALL_SUBTEST_1(( inplace<LLT<Ref<MatrixXd> >, MatrixXd>(true,true) )); - CALL_SUBTEST_1(( inplace<LLT<Ref<Matrix4d> >, Matrix4d>(true,true) )); - - CALL_SUBTEST_2(( inplace<LDLT<Ref<MatrixXd> >, MatrixXd>(true,true) )); - CALL_SUBTEST_2(( inplace<LDLT<Ref<Matrix4d> >, Matrix4d>(true,true) )); - - CALL_SUBTEST_3(( inplace<PartialPivLU<Ref<MatrixXd> >, MatrixXd>(true,false) )); - CALL_SUBTEST_3(( inplace<PartialPivLU<Ref<Matrix4d> >, Matrix4d>(true,false) )); - - CALL_SUBTEST_4(( inplace<FullPivLU<Ref<MatrixXd> >, MatrixXd>(true,false) )); - CALL_SUBTEST_4(( inplace<FullPivLU<Ref<Matrix4d> >, Matrix4d>(true,false) )); - - CALL_SUBTEST_5(( inplace<HouseholderQR<Ref<MatrixXd> >, MatrixXd>(false,false) )); - CALL_SUBTEST_5(( inplace<HouseholderQR<Ref<Matrix43d> >, Matrix43d>(false,false) )); - - CALL_SUBTEST_6(( inplace<ColPivHouseholderQR<Ref<MatrixXd> >, MatrixXd>(false,false) )); - CALL_SUBTEST_6(( inplace<ColPivHouseholderQR<Ref<Matrix43d> >, Matrix43d>(false,false) )); - - CALL_SUBTEST_7(( inplace<FullPivHouseholderQR<Ref<MatrixXd> >, MatrixXd>(false,false) )); - CALL_SUBTEST_7(( inplace<FullPivHouseholderQR<Ref<Matrix43d> >, Matrix43d>(false,false) )); - - CALL_SUBTEST_8(( inplace<CompleteOrthogonalDecomposition<Ref<MatrixXd> >, MatrixXd>(false,false) )); - CALL_SUBTEST_8(( inplace<CompleteOrthogonalDecomposition<Ref<Matrix43d> >, Matrix43d>(false,false) )); - } -} |