| // This file is part of Eigen, a lightweight C++ template library | |
| // for linear algebra. | |
| // | |
| // Copyright (C) 2008-2014 Gael Guennebaud <gael.guennebaud@inria.fr> | |
| // | |
| // This Source Code Form is subject to the terms of the Mozilla | |
| // Public License v. 2.0. If a copy of the MPL was not distributed | |
| // with this file, You can obtain one at http://mozilla.org/MPL/2.0/. | |
| #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(); | |
| } | |
| } // end namespace Eigen | |
| #endif // EIGEN_SPARSEREDUX_H |