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// This file is part of Eigen, a lightweight C++ template library
// for linear algebra. Eigen itself is part of the KDE project.
//
// Copyright (C) 2006-2008 Benoit Jacob <jacob@math.jussieu.fr>
//
// Eigen is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 3 of the License, or (at your option) any later version.
//
// Alternatively, you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
// published by the Free Software Foundation; either version 2 of
// the License, or (at your option) any later version.
//
// Eigen is distributed in the hope that it will be useful, but WITHOUT ANY
// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
// FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License or the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License and a copy of the GNU General Public License along with
// Eigen. If not, see <http://www.gnu.org/licenses/>.
#ifndef EIGEN_MATRIXREF_H
#define EIGEN_MATRIXREF_H
template<typename MatrixType>
struct ei_traits<MatrixRef<MatrixType> >
{
typedef typename MatrixType::Scalar Scalar;
enum {
RowsAtCompileTime = MatrixType::RowsAtCompileTime,
ColsAtCompileTime = MatrixType::ColsAtCompileTime,
MaxRowsAtCompileTime = MatrixType::MaxRowsAtCompileTime,
MaxColsAtCompileTime = MatrixType::MaxColsAtCompileTime
};
};
template<typename MatrixType> class MatrixRef
: public MatrixBase<MatrixRef<MatrixType> >
{
public:
EIGEN_BASIC_PUBLIC_INTERFACE(MatrixRef)
MatrixRef(const MatrixType& matrix) : m_matrix(matrix) {}
~MatrixRef() {}
EIGEN_INHERIT_ASSIGNMENT_OPERATORS(MatrixRef)
private:
MatrixRef _asArg() const { return *this; }
int _rows() const { return m_matrix.rows(); }
int _cols() const { return m_matrix.cols(); }
const Scalar& _coeff(int row, int col) const
{
return m_matrix._coeff(row, col);
}
Scalar& _coeffRef(int row, int col)
{
return const_cast<MatrixType*>(&m_matrix)->_coeffRef(row, col);
}
protected:
const MatrixType& m_matrix;
};
#endif // EIGEN_MATRIXREF_H
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