diff options
Diffstat (limited to 'third_party/eigen3/Eigen/src/SparseCore/SparseTriangularView.h')
| -rw-r--r-- | third_party/eigen3/Eigen/src/SparseCore/SparseTriangularView.h | 179 |
1 files changed, 0 insertions, 179 deletions
diff --git a/third_party/eigen3/Eigen/src/SparseCore/SparseTriangularView.h b/third_party/eigen3/Eigen/src/SparseCore/SparseTriangularView.h deleted file mode 100644 index 333127b78e..0000000000 --- a/third_party/eigen3/Eigen/src/SparseCore/SparseTriangularView.h +++ /dev/null @@ -1,179 +0,0 @@ -// This file is part of Eigen, a lightweight C++ template library -// for linear algebra. -// -// Copyright (C) 2009 Gael Guennebaud <gael.guennebaud@inria.fr> -// Copyright (C) 2012 Désiré Nuentsa-Wakam <desire.nuentsa_wakam@inria.fr> -// -// This Source Code Form is subject to the terms of the Mozilla -// Public License v. 2.0. If a copy of the MPL was not distributed -// with this file, You can obtain one at http://mozilla.org/MPL/2.0/. - -#ifndef EIGEN_SPARSE_TRIANGULARVIEW_H -#define EIGEN_SPARSE_TRIANGULARVIEW_H - -namespace Eigen { - -namespace internal { - -template<typename MatrixType, int Mode> -struct traits<SparseTriangularView<MatrixType,Mode> > -: public traits<MatrixType> -{}; - -} // namespace internal - -template<typename MatrixType, int Mode> class SparseTriangularView - : public SparseMatrixBase<SparseTriangularView<MatrixType,Mode> > -{ - enum { SkipFirst = ((Mode&Lower) && !(MatrixType::Flags&RowMajorBit)) - || ((Mode&Upper) && (MatrixType::Flags&RowMajorBit)), - SkipLast = !SkipFirst, - SkipDiag = (Mode&ZeroDiag) ? 1 : 0, - HasUnitDiag = (Mode&UnitDiag) ? 1 : 0 - }; - - public: - - EIGEN_SPARSE_PUBLIC_INTERFACE(SparseTriangularView) - - class InnerIterator; - class ReverseInnerIterator; - - inline Index rows() const { return m_matrix.rows(); } - inline Index cols() const { return m_matrix.cols(); } - - typedef typename MatrixType::Nested MatrixTypeNested; - typedef typename internal::remove_reference<MatrixTypeNested>::type MatrixTypeNestedNonRef; - typedef typename internal::remove_all<MatrixTypeNested>::type MatrixTypeNestedCleaned; - - inline SparseTriangularView(const MatrixType& matrix) : m_matrix(matrix) {} - - /** \internal */ - inline const MatrixTypeNestedCleaned& nestedExpression() const { return m_matrix; } - - template<typename OtherDerived> - typename internal::plain_matrix_type_column_major<OtherDerived>::type - solve(const MatrixBase<OtherDerived>& other) const; - - template<typename OtherDerived> void solveInPlace(MatrixBase<OtherDerived>& other) const; - template<typename OtherDerived> void solveInPlace(SparseMatrixBase<OtherDerived>& other) const; - - protected: - MatrixTypeNested m_matrix; -}; - -template<typename MatrixType, int Mode> -class SparseTriangularView<MatrixType,Mode>::InnerIterator : public MatrixTypeNestedCleaned::InnerIterator -{ - typedef typename MatrixTypeNestedCleaned::InnerIterator Base; - typedef typename SparseTriangularView::Index Index; - public: - - EIGEN_STRONG_INLINE InnerIterator(const SparseTriangularView& view, Index outer) - : Base(view.nestedExpression(), outer), m_returnOne(false) - { - if(SkipFirst) - { - while((*this) && ((HasUnitDiag||SkipDiag) ? this->index()<=outer : this->index()<outer)) - Base::operator++(); - if(HasUnitDiag) - m_returnOne = true; - } - else if(HasUnitDiag && ((!Base::operator bool()) || Base::index()>=Base::outer())) - { - if((!SkipFirst) && Base::operator bool()) - Base::operator++(); - m_returnOne = true; - } - } - - EIGEN_STRONG_INLINE InnerIterator& operator++() - { - if(HasUnitDiag && m_returnOne) - m_returnOne = false; - else - { - Base::operator++(); - if(HasUnitDiag && (!SkipFirst) && ((!Base::operator bool()) || Base::index()>=Base::outer())) - { - if((!SkipFirst) && Base::operator bool()) - Base::operator++(); - m_returnOne = true; - } - } - return *this; - } - - inline Index row() const { return (MatrixType::Flags&RowMajorBit ? Base::outer() : this->index()); } - inline Index col() const { return (MatrixType::Flags&RowMajorBit ? this->index() : Base::outer()); } - inline Index index() const - { - if(HasUnitDiag && m_returnOne) return Base::outer(); - else return Base::index(); - } - inline Scalar value() const - { - if(HasUnitDiag && m_returnOne) return Scalar(1); - else return Base::value(); - } - - EIGEN_STRONG_INLINE operator bool() const - { - if(HasUnitDiag && m_returnOne) - return true; - if(SkipFirst) return Base::operator bool(); - else - { - if (SkipDiag) return (Base::operator bool() && this->index() < this->outer()); - else return (Base::operator bool() && this->index() <= this->outer()); - } - } - protected: - bool m_returnOne; -}; - -template<typename MatrixType, int Mode> -class SparseTriangularView<MatrixType,Mode>::ReverseInnerIterator : public MatrixTypeNestedCleaned::ReverseInnerIterator -{ - typedef typename MatrixTypeNestedCleaned::ReverseInnerIterator Base; - typedef typename SparseTriangularView::Index Index; - public: - - EIGEN_STRONG_INLINE ReverseInnerIterator(const SparseTriangularView& view, Index outer) - : Base(view.nestedExpression(), outer) - { - eigen_assert((!HasUnitDiag) && "ReverseInnerIterator does not support yet triangular views with a unit diagonal"); - if(SkipLast) { - while((*this) && (SkipDiag ? this->index()>=outer : this->index()>outer)) - --(*this); - } - } - - EIGEN_STRONG_INLINE ReverseInnerIterator& operator--() - { Base::operator--(); return *this; } - - inline Index row() const { return Base::row(); } - inline Index col() const { return Base::col(); } - - EIGEN_STRONG_INLINE operator bool() const - { - if (SkipLast) return Base::operator bool() ; - else - { - if(SkipDiag) return (Base::operator bool() && this->index() > this->outer()); - else return (Base::operator bool() && this->index() >= this->outer()); - } - } -}; - -template<typename Derived> -template<int Mode> -inline const SparseTriangularView<Derived, Mode> -SparseMatrixBase<Derived>::triangularView() const -{ - return derived(); -} - -} // end namespace Eigen - -#endif // EIGEN_SPARSE_TRIANGULARVIEW_H |