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Diffstat (limited to 'extern/Eigen2/Eigen/src/Core/DiagonalCoeffs.h')
-rw-r--r-- | extern/Eigen2/Eigen/src/Core/DiagonalCoeffs.h | 124 |
1 files changed, 0 insertions, 124 deletions
diff --git a/extern/Eigen2/Eigen/src/Core/DiagonalCoeffs.h b/extern/Eigen2/Eigen/src/Core/DiagonalCoeffs.h deleted file mode 100644 index 767fe5fb7c0..00000000000 --- a/extern/Eigen2/Eigen/src/Core/DiagonalCoeffs.h +++ /dev/null @@ -1,124 +0,0 @@ -// 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.benoit.1@gmail.com> -// -// 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_DIAGONALCOEFFS_H -#define EIGEN_DIAGONALCOEFFS_H - -/** \class DiagonalCoeffs - * - * \brief Expression of the main diagonal of a matrix - * - * \param MatrixType the type of the object in which we are taking the main diagonal - * - * The matrix is not required to be square. - * - * This class represents an expression of the main diagonal of a square matrix. - * It is the return type of MatrixBase::diagonal() and most of the time this is - * the only way it is used. - * - * \sa MatrixBase::diagonal() - */ -template<typename MatrixType> -struct ei_traits<DiagonalCoeffs<MatrixType> > -{ - typedef typename MatrixType::Scalar Scalar; - typedef typename ei_nested<MatrixType>::type MatrixTypeNested; - typedef typename ei_unref<MatrixTypeNested>::type _MatrixTypeNested; - enum { - RowsAtCompileTime = int(MatrixType::SizeAtCompileTime) == Dynamic ? Dynamic - : EIGEN_ENUM_MIN(MatrixType::RowsAtCompileTime, - MatrixType::ColsAtCompileTime), - ColsAtCompileTime = 1, - MaxRowsAtCompileTime = int(MatrixType::MaxSizeAtCompileTime) == Dynamic ? Dynamic - : EIGEN_ENUM_MIN(MatrixType::MaxRowsAtCompileTime, - MatrixType::MaxColsAtCompileTime), - MaxColsAtCompileTime = 1, - Flags = (unsigned int)_MatrixTypeNested::Flags & (HereditaryBits | LinearAccessBit), - CoeffReadCost = _MatrixTypeNested::CoeffReadCost - }; -}; - -template<typename MatrixType> class DiagonalCoeffs - : public MatrixBase<DiagonalCoeffs<MatrixType> > -{ - public: - - EIGEN_GENERIC_PUBLIC_INTERFACE(DiagonalCoeffs) - - inline DiagonalCoeffs(const MatrixType& matrix) : m_matrix(matrix) {} - - EIGEN_INHERIT_ASSIGNMENT_OPERATORS(DiagonalCoeffs) - - inline int rows() const { return std::min(m_matrix.rows(), m_matrix.cols()); } - inline int cols() const { return 1; } - - inline Scalar& coeffRef(int row, int) - { - return m_matrix.const_cast_derived().coeffRef(row, row); - } - - inline const Scalar coeff(int row, int) const - { - return m_matrix.coeff(row, row); - } - - inline Scalar& coeffRef(int index) - { - return m_matrix.const_cast_derived().coeffRef(index, index); - } - - inline const Scalar coeff(int index) const - { - return m_matrix.coeff(index, index); - } - - protected: - - const typename MatrixType::Nested m_matrix; -}; - -/** \returns an expression of the main diagonal of the matrix \c *this - * - * \c *this is not required to be square. - * - * Example: \include MatrixBase_diagonal.cpp - * Output: \verbinclude MatrixBase_diagonal.out - * - * \sa class DiagonalCoeffs */ -template<typename Derived> -inline DiagonalCoeffs<Derived> -MatrixBase<Derived>::diagonal() -{ - return DiagonalCoeffs<Derived>(derived()); -} - -/** This is the const version of diagonal(). */ -template<typename Derived> -inline const DiagonalCoeffs<Derived> -MatrixBase<Derived>::diagonal() const -{ - return DiagonalCoeffs<Derived>(derived()); -} - -#endif // EIGEN_DIAGONALCOEFFS_H |