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Diffstat (limited to 'eigen/Eigen/src/Cholesky/LDLT.h')
| -rw-r--r-- | eigen/Eigen/src/Cholesky/LDLT.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/eigen/Eigen/src/Cholesky/LDLT.h b/eigen/Eigen/src/Cholesky/LDLT.h index 0313a54..15ccf24 100644 --- a/eigen/Eigen/src/Cholesky/LDLT.h +++ b/eigen/Eigen/src/Cholesky/LDLT.h @@ -305,7 +305,8 @@ template<> struct ldlt_inplace<Lower> if (size <= 1) { transpositions.setIdentity(); - if (numext::real(mat.coeff(0,0)) > static_cast<RealScalar>(0) ) sign = PositiveSemiDef; + if(size==0) sign = ZeroSign; + else if (numext::real(mat.coeff(0,0)) > static_cast<RealScalar>(0) ) sign = PositiveSemiDef; else if (numext::real(mat.coeff(0,0)) < static_cast<RealScalar>(0)) sign = NegativeSemiDef; else sign = ZeroSign; return true; |