| 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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