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e7ef6dba9d
- Remove operator<<, use .alias() instead - Introduce operator/ (scalar) - Cleanup, unit-tests update.
129 lines
4.0 KiB
C++
129 lines
4.0 KiB
C++
// 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) 2006-2007 Benoit Jacob <jacob@math.jussieu.fr>
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//
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// Eigen is free software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the Free Software
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// Foundation; either version 2 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 General Public License for more
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// details.
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//
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// You should have received a copy of the GNU General Public License along
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// with Eigen; if not, write to the Free Software Foundation, Inc., 51
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// Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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//
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// As a special exception, if other files instantiate templates or use macros
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// or functions from this file, or you compile this file and link it
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// with other works to produce a work based on this file, this file does not
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// by itself cause the resulting work to be covered by the GNU General Public
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// License. This exception does not invalidate any other reasons why a work
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// based on this file might be covered by the GNU General Public License.
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#ifndef EIGEN_MATRIXXPR_H
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#define EIGEN_MATRIXXPR_H
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namespace Eigen {
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//forward declarations
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template<typename MatrixType> class MatrixRow;
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template<typename MatrixType> class MatrixCol;
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template<typename MatrixType> class MatrixMinor;
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template<typename MatrixType> class MatrixBlock;
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template<typename Content> class MatrixConstXpr
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{
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public:
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typedef typename Content::Scalar Scalar;
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MatrixConstXpr(const Content& content)
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: m_content(content) {}
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MatrixConstXpr(const MatrixConstXpr& other)
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: m_content(other.m_content) {}
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~MatrixConstXpr() {}
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static bool hasDynamicSize()
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{
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return Content::hasDynamicSize();
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}
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int rows() const { return m_content.rows(); }
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int cols() const { return m_content.cols(); }
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Scalar operator()(int row, int col) const
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{
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return m_content(row, col);
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}
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MatrixConstXpr<MatrixRow<const MatrixConstXpr<Content> > > row(int i) const;
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MatrixConstXpr<MatrixCol<const MatrixConstXpr<Content> > > col(int i) const;
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MatrixConstXpr<MatrixMinor<const MatrixConstXpr<Content> > > minor(int row, int col) const;
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MatrixConstXpr<MatrixBlock<const MatrixConstXpr<Content> > >
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block(int startRow, int endRow, int startCol= 0, int endCol = 0) const;
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protected:
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const Content m_content;
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};
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template<typename Content> class MatrixXpr
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{
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public:
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typedef typename Content::Scalar Scalar;
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MatrixXpr(const Content& content)
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: m_content(content) {}
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MatrixXpr(const MatrixXpr& other)
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: m_content(other.m_content) {}
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~MatrixXpr() {}
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static bool hasDynamicSize()
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{
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return Content::hasDynamicSize();
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}
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int rows() const { return m_content.rows(); }
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int cols() const { return m_content.cols(); }
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Scalar& operator()(int row, int col)
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{
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return m_content(row, col);
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}
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template<typename OtherContent>
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MatrixXpr& operator=(const MatrixConstXpr<OtherContent> &other)
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{
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assert(rows() == other.rows() && cols() == other.cols());
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for(int i = 0; i < rows(); i++)
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for(int j = 0; j < cols(); j++)
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this->operator()(i, j) = other(i, j);
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return *this;
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}
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template<typename Derived>
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MatrixXpr& operator=(const MatrixBase<Derived>& matrix);
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MatrixXpr<MatrixRow<MatrixXpr<Content> > > row(int i);
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MatrixXpr<MatrixCol<MatrixXpr<Content> > > col(int i);
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MatrixXpr<MatrixMinor<MatrixXpr<Content> > > minor(int row, int col);
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MatrixXpr<MatrixBlock<MatrixXpr<Content> > >
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block(int startRow, int endRow, int startCol= 0, int endCol = 0);
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private:
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void operator=(const MatrixXpr &other)
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{}
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protected:
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Content m_content;
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};
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} // namespace Eigen
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#endif // EIGEN_MATRIXXPR_H
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