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| #ifndef EIGEN_SPARSEREDUX_H |
| #define EIGEN_SPARSEREDUX_H |
|
|
| namespace Eigen { |
|
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| 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 |
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