[136] | 1 | // This file is part of Eigen, a lightweight C++ template library
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| 2 | // for linear algebra.
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| 3 | //
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| 4 | // Copyright (C) 2008 Gael Guennebaud <gael.guennebaud@inria.fr>
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| 5 | //
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| 6 | // This Source Code Form is subject to the terms of the Mozilla
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| 7 | // Public License v. 2.0. If a copy of the MPL was not distributed
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| 8 | // with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
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| 9 |
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| 10 | #ifndef EIGEN_SPARSEREDUX_H
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| 11 | #define EIGEN_SPARSEREDUX_H
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| 12 |
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| 13 | namespace Eigen {
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| 14 |
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| 15 | template<typename Derived>
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| 16 | typename internal::traits<Derived>::Scalar
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| 17 | SparseMatrixBase<Derived>::sum() const
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| 18 | {
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| 19 | eigen_assert(rows()>0 && cols()>0 && "you are using a non initialized matrix");
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| 20 | Scalar res(0);
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| 21 | for (Index j=0; j<outerSize(); ++j)
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| 22 | for (typename Derived::InnerIterator iter(derived(),j); iter; ++iter)
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| 23 | res += iter.value();
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| 24 | return res;
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| 25 | }
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| 26 |
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| 27 | template<typename _Scalar, int _Options, typename _Index>
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| 28 | typename internal::traits<SparseMatrix<_Scalar,_Options,_Index> >::Scalar
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| 29 | SparseMatrix<_Scalar,_Options,_Index>::sum() const
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| 30 | {
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| 31 | eigen_assert(rows()>0 && cols()>0 && "you are using a non initialized matrix");
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| 32 | if(this->isCompressed())
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| 33 | return Matrix<Scalar,1,Dynamic>::Map(m_data.valuePtr(), m_data.size()).sum();
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| 34 | else
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| 35 | return Base::sum();
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| 36 | }
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| 37 |
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| 38 | template<typename _Scalar, int _Options, typename _Index>
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| 39 | typename internal::traits<SparseVector<_Scalar,_Options, _Index> >::Scalar
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| 40 | SparseVector<_Scalar,_Options,_Index>::sum() const
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| 41 | {
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| 42 | eigen_assert(rows()>0 && cols()>0 && "you are using a non initialized matrix");
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| 43 | return Matrix<Scalar,1,Dynamic>::Map(m_data.valuePtr(), m_data.size()).sum();
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| 44 | }
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| 45 |
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| 46 | } // end namespace Eigen
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| 47 |
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| 48 | #endif // EIGEN_SPARSEREDUX_H
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