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Eigen
Eigen
src
SparseCore
SparseRedux.h
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// This file is part of Eigen, a lightweight C++ template library
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// for linear algebra.
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//
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// Copyright (C) 2008-2014 Gael Guennebaud <gael.guennebaud@inria.fr>
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//
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// This Source Code Form is subject to the terms of the Mozilla
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// Public License v. 2.0. If a copy of the MPL was not distributed
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// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
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#ifndef EIGEN_SPARSEREDUX_H
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#define EIGEN_SPARSEREDUX_H
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namespace
Eigen
{
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template
<
typename
Derived>
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typename
internal::traits<Derived>::Scalar
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SparseMatrixBase<Derived>::sum
()
const
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{
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eigen_assert
(
rows
()>0 &&
cols
()>0 &&
"you are using a non initialized matrix"
);
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Scalar
res
(0);
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internal::evaluator<Derived>
thisEval(derived());
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for
(
Index
j
=0;
j
<outerSize(); ++
j
)
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for
(
typename
internal::evaluator<Derived>::InnerIterator
iter
(thisEval,
j
);
iter
; ++
iter
)
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res
+=
iter
.
value
();
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return
res
;
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}
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template
<
typename
_Scalar,
int
_Options,
typename
_Index>
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typename
internal::traits<SparseMatrix<_Scalar,_Options,_Index>
>
::Scalar
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SparseMatrix<_Scalar,_Options,_Index>::sum
()
const
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{
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eigen_assert
(
rows
()>0 &&
cols
()>0 &&
"you are using a non initialized matrix"
);
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if
(this->isCompressed())
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return
Matrix<Scalar,1,Dynamic>::Map
(m_data.valuePtr(), m_data.size()).sum();
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else
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return
Base::sum();
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}
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template
<
typename
_Scalar,
int
_Options,
typename
_Index>
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typename
internal::traits<SparseVector<_Scalar,_Options, _Index>
>
::Scalar
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SparseVector<_Scalar,_Options,_Index>::sum
()
const
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{
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eigen_assert
(
rows
()>0 &&
cols
()>0 &&
"you are using a non initialized matrix"
);
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return
Matrix<Scalar,1,Dynamic>::Map
(m_data.valuePtr(), m_data.size()).sum();
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}
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}
// end namespace Eigen
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#endif // EIGEN_SPARSEREDUX_H
Eigen
Namespace containing all symbols from the Eigen library.
Definition:
jet.h:637
Eigen::SparseVector::sum
Scalar sum() const
Definition:
SparseRedux.h:41
Eigen::SparseMatrix::sum
Scalar sum() const
Definition:
SparseRedux.h:30
eigen_assert
#define eigen_assert(x)
Definition:
Macros.h:1037
res
cout<< "Here is the matrix m:"<< endl<< m<< endl;Matrix< ptrdiff_t, 3, 1 > res
Definition:
PartialRedux_count.cpp:3
rows
int rows
Definition:
Tutorial_commainit_02.cpp:1
Eigen::SparseMatrixBase< CwiseBinaryOp< BinaryOp, Lhs, Rhs > >::Scalar
internal::traits< Derived >::Scalar Scalar
Definition:
SparseMatrixBase.h:31
j
std::ptrdiff_t j
Definition:
tut_arithmetic_redux_minmax.cpp:2
iterator::value
object value
Definition:
pytypes.h:1522
Eigen::internal::evaluator
Definition:
CoreEvaluators.h:90
Eigen::PlainObjectBase< Matrix< _Scalar, _Rows, _Cols, _Options, _MaxRows, _MaxCols > >::Map
static ConstMapType Map(const Scalar *data)
Definition:
PlainObjectBase.h:644
Eigen::SparseMatrixBase::sum
Scalar sum() const
Definition:
SparseRedux.h:17
Eigen::internal::traits
Definition:
ForwardDeclarations.h:17
iter
iterator iter(handle obj)
Definition:
pytypes.h:2475
cols
int cols
Definition:
Tutorial_commainit_02.cpp:1
Scalar
SCALAR Scalar
Definition:
bench_gemm.cpp:46
Eigen::Index
EIGEN_DEFAULT_DENSE_INDEX_TYPE Index
The Index type as used for the API.
Definition:
Meta.h:74
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autogenerated on Fri Nov 1 2024 03:36:03