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// 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
// IWYU pragma: private
#include "./InternalHeaderCheck.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