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Diffstat (limited to 'extern/Eigen3/Eigen/src/Core/Flagged.h')
-rw-r--r-- | extern/Eigen3/Eigen/src/Core/Flagged.h | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/extern/Eigen3/Eigen/src/Core/Flagged.h b/extern/Eigen3/Eigen/src/Core/Flagged.h new file mode 100644 index 00000000000..458213ab553 --- /dev/null +++ b/extern/Eigen3/Eigen/src/Core/Flagged.h @@ -0,0 +1,151 @@ +// This file is part of Eigen, a lightweight C++ template library +// for linear algebra. +// +// Copyright (C) 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_FLAGGED_H +#define EIGEN_FLAGGED_H + +/** \class Flagged + * \ingroup Core_Module + * + * \brief Expression with modified flags + * + * \param ExpressionType the type of the object of which we are modifying the flags + * \param Added the flags added to the expression + * \param Removed the flags removed from the expression (has priority over Added). + * + * This class represents an expression whose flags have been modified. + * It is the return type of MatrixBase::flagged() + * and most of the time this is the only way it is used. + * + * \sa MatrixBase::flagged() + */ + +namespace internal { +template<typename ExpressionType, unsigned int Added, unsigned int Removed> +struct traits<Flagged<ExpressionType, Added, Removed> > : traits<ExpressionType> +{ + enum { Flags = (ExpressionType::Flags | Added) & ~Removed }; +}; +} + +template<typename ExpressionType, unsigned int Added, unsigned int Removed> class Flagged + : public MatrixBase<Flagged<ExpressionType, Added, Removed> > +{ + public: + + typedef MatrixBase<Flagged> Base; + + EIGEN_DENSE_PUBLIC_INTERFACE(Flagged) + typedef typename internal::conditional<internal::must_nest_by_value<ExpressionType>::ret, + ExpressionType, const ExpressionType&>::type ExpressionTypeNested; + typedef typename ExpressionType::InnerIterator InnerIterator; + + inline Flagged(const ExpressionType& matrix) : m_matrix(matrix) {} + + inline Index rows() const { return m_matrix.rows(); } + inline Index cols() const { return m_matrix.cols(); } + inline Index outerStride() const { return m_matrix.outerStride(); } + inline Index innerStride() const { return m_matrix.innerStride(); } + + inline CoeffReturnType coeff(Index row, Index col) const + { + return m_matrix.coeff(row, col); + } + + inline CoeffReturnType coeff(Index index) const + { + return m_matrix.coeff(index); + } + + inline const Scalar& coeffRef(Index row, Index col) const + { + return m_matrix.const_cast_derived().coeffRef(row, col); + } + + inline const Scalar& coeffRef(Index index) const + { + return m_matrix.const_cast_derived().coeffRef(index); + } + + inline Scalar& coeffRef(Index row, Index col) + { + return m_matrix.const_cast_derived().coeffRef(row, col); + } + + inline Scalar& coeffRef(Index index) + { + return m_matrix.const_cast_derived().coeffRef(index); + } + + template<int LoadMode> + inline const PacketScalar packet(Index row, Index col) const + { + return m_matrix.template packet<LoadMode>(row, col); + } + + template<int LoadMode> + inline void writePacket(Index row, Index col, const PacketScalar& x) + { + m_matrix.const_cast_derived().template writePacket<LoadMode>(row, col, x); + } + + template<int LoadMode> + inline const PacketScalar packet(Index index) const + { + return m_matrix.template packet<LoadMode>(index); + } + + template<int LoadMode> + inline void writePacket(Index index, const PacketScalar& x) + { + m_matrix.const_cast_derived().template writePacket<LoadMode>(index, x); + } + + const ExpressionType& _expression() const { return m_matrix; } + + template<typename OtherDerived> + typename ExpressionType::PlainObject solveTriangular(const MatrixBase<OtherDerived>& other) const; + + template<typename OtherDerived> + void solveTriangularInPlace(const MatrixBase<OtherDerived>& other) const; + + protected: + ExpressionTypeNested m_matrix; +}; + +/** \returns an expression of *this with added and removed flags + * + * This is mostly for internal use. + * + * \sa class Flagged + */ +template<typename Derived> +template<unsigned int Added,unsigned int Removed> +inline const Flagged<Derived, Added, Removed> +DenseBase<Derived>::flagged() const +{ + return derived(); +} + +#endif // EIGEN_FLAGGED_H |