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86 lines
2.9 KiB
C
86 lines
2.9 KiB
C
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// This file is part of Eigen, a lightweight C++ template library
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// for linear algebra. Eigen itself is part of the KDE project.
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//
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// Copyright (C) 2008 Gael Guennebaud <g.gael@free.fr>
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//
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// Eigen is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 3 of the License, or (at your option) any later version.
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//
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// Alternatively, you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as
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// published by the Free Software Foundation; either version 2 of
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// the License, or (at your option) any later version.
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//
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// Eigen is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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// FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License or the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License and a copy of the GNU General Public License along with
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// Eigen. If not, see <http://www.gnu.org/licenses/>.
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#ifndef EIGEN_SPARSETRANSPOSE_H
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#define EIGEN_SPARSETRANSPOSE_H
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template<typename MatrixType>
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struct ei_traits<SparseTranspose<MatrixType> > : ei_traits<Transpose<MatrixType> >
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{};
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template<typename MatrixType> class SparseTranspose
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: public SparseMatrixBase<SparseTranspose<MatrixType> >
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{
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public:
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EIGEN_GENERIC_PUBLIC_INTERFACE(SparseTranspose)
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class InnerIterator;
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class ReverseInnerIterator;
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inline SparseTranspose(const MatrixType& matrix) : m_matrix(matrix) {}
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//EIGEN_INHERIT_ASSIGNMENT_OPERATORS(SparseTranspose)
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inline int rows() const { return m_matrix.cols(); }
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inline int cols() const { return m_matrix.rows(); }
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inline int nonZeros() const { return m_matrix.nonZeros(); }
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// FIXME should be keep them ?
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inline Scalar& coeffRef(int row, int col)
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{ return m_matrix.const_cast_derived().coeffRef(col, row); }
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inline const Scalar coeff(int row, int col) const
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{ return m_matrix.coeff(col, row); }
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inline const Scalar coeff(int index) const
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{ return m_matrix.coeff(index); }
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inline Scalar& coeffRef(int index)
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{ return m_matrix.const_cast_derived().coeffRef(index); }
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protected:
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const typename MatrixType::Nested m_matrix;
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};
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template<typename MatrixType> class SparseTranspose<MatrixType>::InnerIterator : public MatrixType::InnerIterator
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{
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public:
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EIGEN_STRONG_INLINE InnerIterator(const SparseTranspose& trans, int outer)
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: MatrixType::InnerIterator(trans.m_matrix, outer)
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{}
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};
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template<typename MatrixType> class SparseTranspose<MatrixType>::ReverseInnerIterator : public MatrixType::ReverseInnerIterator
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{
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public:
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EIGEN_STRONG_INLINE ReverseInnerIterator(const SparseTranspose& xpr, int outer)
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: MatrixType::ReverseInnerIterator(xpr.m_matrix, outer)
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{}
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};
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#endif // EIGEN_SPARSETRANSPOSE_H
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