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Fix sparseLU solver when destination has a non-unit stride.

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(cherry picked from commit ab2b26fbc2)
This commit is contained in:
Antonio Sánchez
2022-11-29 19:37:03 +00:00
committed by Antonio Sanchez
parent 5547205092
commit 26adb0e5af
3 changed files with 14 additions and 10 deletions
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7
test/sparse_solver.h
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@@ -99,6 +99,13 @@ void check_sparse_solving(Solver& solver, const typename Solver::MatrixType& A,
VERIFY(solver.info() == Success && "solving failed when using Map");
VERIFY(oldb.isApprox(bm) && "sparse solver testing: the rhs should not be modified!");
VERIFY(xm.isApprox(refX,test_precision<Scalar>()));
// Test with a Map and non-unit stride.
Eigen::Matrix<Scalar, Eigen::Dynamic, Eigen::Dynamic> out(2*xm.rows(), 2*xm.cols());
out.setZero();
Eigen::Map<DenseRhs, 0, Stride<Eigen::Dynamic, 2> > outm(out.data(), xm.rows(), xm.cols(), Stride<Eigen::Dynamic, 2>(2 * xm.rows(), 2));
outm = solver.solve(bm);
VERIFY(outm.isApprox(refX,test_precision<Scalar>()));
}
// if not too large, do some extra check: