| 1 | // This file is part of Eigen, a lightweight C++ template library |
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| 2 | // for linear algebra. |
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| 3 | // |
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| 4 | // Copyright (C) 2009 Benoit Jacob <jacob.benoit.1@gmail.com> |
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| 5 | // |
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| 6 | // This Source Code Form is subject to the terms of the Mozilla |
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| 7 | // Public License v. 2.0. If a copy of the MPL was not distributed |
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| 8 | // with this file, You can obtain one at http://mozilla.org/MPL/2.0/. |
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| 9 | |
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| 10 | #ifndef EIGEN_MISC_SOLVE_H |
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| 11 | #define EIGEN_MISC_SOLVE_H |
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| 12 | |
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| 13 | namespace Eigen { |
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| 14 | |
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| 15 | namespace internal { |
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| 16 | |
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| 17 | /** \class solve_retval_base |
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| 18 | * |
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| 19 | */ |
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| 20 | template<typename DecompositionType, typename Rhs> |
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| 21 | struct traits<solve_retval_base<DecompositionType, Rhs> > |
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| 22 | { |
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| 23 | typedef typename DecompositionType::MatrixType MatrixType; |
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| 24 | typedef Matrix<typename Rhs::Scalar, |
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| 25 | MatrixType::ColsAtCompileTime, |
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| 26 | Rhs::ColsAtCompileTime, |
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| 27 | Rhs::PlainObject::Options, |
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| 28 | MatrixType::MaxColsAtCompileTime, |
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| 29 | Rhs::MaxColsAtCompileTime> ReturnType; |
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| 30 | }; |
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| 31 | |
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| 32 | template<typename _DecompositionType, typename Rhs> struct solve_retval_base |
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| 33 | : public ReturnByValue<solve_retval_base<_DecompositionType, Rhs> > |
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| 34 | { |
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| 35 | typedef typename remove_all<typename Rhs::Nested>::type RhsNestedCleaned; |
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| 36 | typedef _DecompositionType DecompositionType; |
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| 37 | typedef ReturnByValue<solve_retval_base> Base; |
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| 38 | typedef typename Base::Index Index; |
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| 39 | |
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| 40 | solve_retval_base(const DecompositionType& dec, const Rhs& rhs) |
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| 41 | : m_dec(dec), m_rhs(rhs) |
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| 42 | {} |
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| 43 | |
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| 44 | inline Index rows() const { return m_dec.cols(); } |
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| 45 | inline Index cols() const { return m_rhs.cols(); } |
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| 46 | inline const DecompositionType& dec() const { return m_dec; } |
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| 47 | inline const RhsNestedCleaned& rhs() const { return m_rhs; } |
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| 48 | |
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| 49 | template<typename Dest> inline void evalTo(Dest& dst) const |
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| 50 | { |
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| 51 | static_cast<const solve_retval<DecompositionType,Rhs>*>(this)->evalTo(dst); |
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| 52 | } |
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| 53 | |
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| 54 | protected: |
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| 55 | const DecompositionType& m_dec; |
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| 56 | typename Rhs::Nested m_rhs; |
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| 57 | }; |
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| 58 | |
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| 59 | } // end namespace internal |
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| 60 | |
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| 61 | #define EIGEN_MAKE_SOLVE_HELPERS(DecompositionType,Rhs) \ |
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| 62 | typedef typename DecompositionType::MatrixType MatrixType; \ |
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| 63 | typedef typename MatrixType::Scalar Scalar; \ |
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| 64 | typedef typename MatrixType::RealScalar RealScalar; \ |
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| 65 | typedef typename MatrixType::Index Index; \ |
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| 66 | typedef Eigen::internal::solve_retval_base<DecompositionType,Rhs> Base; \ |
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| 67 | using Base::dec; \ |
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| 68 | using Base::rhs; \ |
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| 69 | using Base::rows; \ |
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| 70 | using Base::cols; \ |
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| 71 | solve_retval(const DecompositionType& dec, const Rhs& rhs) \ |
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| 72 | : Base(dec, rhs) {} |
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| 73 | |
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| 74 | } // end namespace Eigen |
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| 75 | |
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| 76 | #endif // EIGEN_MISC_SOLVE_H |
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