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61 lines
2.3 KiB
C++
61 lines
2.3 KiB
C++
// This file is part of Eigen, a lightweight C++ template library
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// for linear algebra.
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//
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// Copyright (C) 2009 Gael Guennebaud <g.gael@free.fr>
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//
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// Eigen is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 3 of the License, or (at your option) any later version.
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//
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// Alternatively, you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as
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// published by the Free Software Foundation; either version 2 of
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// the License, or (at your option) any later version.
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//
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// Eigen is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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// FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License or the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License and a copy of the GNU General Public License along with
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// Eigen. If not, see <http://www.gnu.org/licenses/>.
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#ifndef EIGEN_SPARSE_TRIANGULAR_H
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#define EIGEN_SPARSE_TRIANGULAR_H
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template<typename ExpressionType, int Mode> class SparseTriangular
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{
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public:
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typedef typename ei_traits<ExpressionType>::Scalar Scalar;
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typedef typename ei_meta_if<ei_must_nest_by_value<ExpressionType>::ret,
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ExpressionType, const ExpressionType&>::ret ExpressionTypeNested;
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typedef CwiseUnaryOp<ei_scalar_add_op<Scalar>, ExpressionType> ScalarAddReturnType;
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inline SparseTriangular(const ExpressionType& matrix) : m_matrix(matrix) {}
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/** \internal */
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inline const ExpressionType& _expression() const { return m_matrix; }
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template<typename OtherDerived>
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typename ei_plain_matrix_type_column_major<OtherDerived>::type
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solve(const MatrixBase<OtherDerived>& other) const;
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template<typename OtherDerived> void solveInPlace(MatrixBase<OtherDerived>& other) const;
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template<typename OtherDerived> void solveInPlace(SparseMatrixBase<OtherDerived>& other) const;
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protected:
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ExpressionTypeNested m_matrix;
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};
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template<typename Derived>
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template<int Mode>
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inline const SparseTriangular<Derived, Mode>
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SparseMatrixBase<Derived>::triangular() const
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{
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return derived();
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}
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#endif // EIGEN_SPARSE_TRIANGULAR_H
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