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bug #785: Make Cholesky decomposition work for empty matrices

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(grafted from 919414b9fe
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This commit is contained in:
Christoph Hertzberg
2018-12-03 16:18:15 +01:00
parent 5c97b48c29
commit b9a2a8d2aa
3 changed files with 14 additions and 7 deletions
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2
Eigen/src/Core/ConditionEstimator.h
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@@ -160,7 +160,7 @@ rcond_estimate_helper(typename Decomposition::RealScalar matrix_norm, const Deco
{
typedef typename Decomposition::RealScalar RealScalar;
eigen_assert(dec.rows() == dec.cols());
if (dec.rows() == 0) return RealScalar(1);
if (dec.rows() == 0) return RealScalar(1)/RealScalar(0);
if (matrix_norm == RealScalar(0)) return RealScalar(0);
if (dec.rows() == 1) return RealScalar(1);
const RealScalar inverse_matrix_norm = rcond_invmatrix_L1_norm_estimate(dec);