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bug #1172: make valuePtr and innderIndexPtr properly return null for empty matrices.

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This commit is contained in:
Gael Guennebaud
2016-02-27 14:55:40 +01:00
parent ac2e6e0d03
commit 8e6faab51e
6 changed files with 34 additions and 28 deletions
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4
Eigen/src/SparseCore/SparseRedux.h
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@@ -30,7 +30,7 @@ typename internal::traits<SparseMatrix<_Scalar,_Options,_Index> >::Scalar
SparseMatrix<_Scalar,_Options,_Index>::sum() const
{
eigen_assert(rows()>0 && cols()>0 && "you are using a non initialized matrix");
return Matrix<Scalar,1,Dynamic>::Map(&m_data.value(0), m_data.size()).sum();
return Matrix<Scalar,1,Dynamic>::Map(m_data.valuePtr(), m_data.size()).sum();
}
template<typename _Scalar, int _Options, typename _Index>
@@ -38,7 +38,7 @@ typename internal::traits<SparseVector<_Scalar,_Options, _Index> >::Scalar
SparseVector<_Scalar,_Options,_Index>::sum() const
{
eigen_assert(rows()>0 && cols()>0 && "you are using a non initialized matrix");
return Matrix<Scalar,1,Dynamic>::Map(&m_data.value(0), m_data.size()).sum();
return Matrix<Scalar,1,Dynamic>::Map(m_data.valuePtr(), m_data.size()).sum();
}
} // end namespace Eigen