diff options
Diffstat (limited to 'extern/Eigen2/Eigen/src/Sparse/SparseFlagged.h')
-rw-r--r-- | extern/Eigen2/Eigen/src/Sparse/SparseFlagged.h | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/extern/Eigen2/Eigen/src/Sparse/SparseFlagged.h b/extern/Eigen2/Eigen/src/Sparse/SparseFlagged.h new file mode 100644 index 00000000000..c47e162f538 --- /dev/null +++ b/extern/Eigen2/Eigen/src/Sparse/SparseFlagged.h @@ -0,0 +1,97 @@ +// This file is part of Eigen, a lightweight C++ template library +// for linear algebra. Eigen itself is part of the KDE project. +// +// Copyright (C) 2008 Benoit Jacob <jacob.benoit.1@gmail.com> +// Copyright (C) 2008 Gael Guennebaud <g.gael@free.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_SPARSE_FLAGGED_H +#define EIGEN_SPARSE_FLAGGED_H + +template<typename ExpressionType, unsigned int Added, unsigned int Removed> +struct ei_traits<SparseFlagged<ExpressionType, Added, Removed> > : ei_traits<ExpressionType> +{ + enum { Flags = (ExpressionType::Flags | Added) & ~Removed }; +}; + +template<typename ExpressionType, unsigned int Added, unsigned int Removed> class SparseFlagged + : public SparseMatrixBase<SparseFlagged<ExpressionType, Added, Removed> > +{ + public: + + EIGEN_SPARSE_GENERIC_PUBLIC_INTERFACE(SparseFlagged) + class InnerIterator; + class ReverseInnerIterator; + + typedef typename ei_meta_if<ei_must_nest_by_value<ExpressionType>::ret, + ExpressionType, const ExpressionType&>::ret ExpressionTypeNested; + + inline SparseFlagged(const ExpressionType& matrix) : m_matrix(matrix) {} + + inline int rows() const { return m_matrix.rows(); } + inline int cols() const { return m_matrix.cols(); } + + // FIXME should be keep them ? + inline Scalar& coeffRef(int row, int col) + { return m_matrix.const_cast_derived().coeffRef(col, row); } + + inline const Scalar coeff(int row, int col) const + { return m_matrix.coeff(col, row); } + + inline const Scalar coeff(int index) const + { return m_matrix.coeff(index); } + + inline Scalar& coeffRef(int index) + { return m_matrix.const_cast_derived().coeffRef(index); } + + protected: + ExpressionTypeNested m_matrix; +}; + +template<typename ExpressionType, unsigned int Added, unsigned int Removed> + class SparseFlagged<ExpressionType,Added,Removed>::InnerIterator : public ExpressionType::InnerIterator +{ + public: + + EIGEN_STRONG_INLINE InnerIterator(const SparseFlagged& xpr, int outer) + : ExpressionType::InnerIterator(xpr.m_matrix, outer) + {} +}; + +template<typename ExpressionType, unsigned int Added, unsigned int Removed> + class SparseFlagged<ExpressionType,Added,Removed>::ReverseInnerIterator : public ExpressionType::ReverseInnerIterator +{ + public: + + EIGEN_STRONG_INLINE ReverseInnerIterator(const SparseFlagged& xpr, int outer) + : ExpressionType::ReverseInnerIterator(xpr.m_matrix, outer) + {} +}; + +template<typename Derived> +template<unsigned int Added> +inline const SparseFlagged<Derived, Added, 0> +SparseMatrixBase<Derived>::marked() const +{ + return derived(); +} + +#endif // EIGEN_SPARSE_FLAGGED_H |