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| | #ifndef EIGEN_SPARSEREDUX_H |
| | #define EIGEN_SPARSEREDUX_H |
| |
|
| | namespace Eigen { |
| |
|
| | template<typename Derived> |
| | typename internal::traits<Derived>::Scalar |
| | SparseMatrixBase<Derived>::sum() const |
| | { |
| | eigen_assert(rows()>0 && cols()>0 && "you are using a non initialized matrix"); |
| | Scalar res(0); |
| | internal::evaluator<Derived> thisEval(derived()); |
| | for (Index j=0; j<outerSize(); ++j) |
| | for (typename internal::evaluator<Derived>::InnerIterator iter(thisEval,j); iter; ++iter) |
| | res += iter.value(); |
| | return res; |
| | } |
| |
|
| | template<typename _Scalar, int _Options, typename _Index> |
| | 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"); |
| | if(this->isCompressed()) |
| | return Matrix<Scalar,1,Dynamic>::Map(m_data.valuePtr(), m_data.size()).sum(); |
| | else |
| | return Base::sum(); |
| | } |
| |
|
| | template<typename _Scalar, int _Options, typename _Index> |
| | 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.valuePtr(), m_data.size()).sum(); |
| | } |
| |
|
| | } |
| |
|
| | #endif |
| |
|