| 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) 2008 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_LAZY_H
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| 11 | #define EIGEN_LAZY_H
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| 12 |
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| 13 | namespace Eigen {
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| 14 |
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| 15 | /** \deprecated it is only used by lazy() which is deprecated
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| 16 | *
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| 17 | * \returns an expression of *this with added flags
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| 18 | *
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| 19 | * Example: \include MatrixBase_marked.cpp
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| 20 | * Output: \verbinclude MatrixBase_marked.out
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| 21 | *
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| 22 | * \sa class Flagged, extract(), part()
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| 23 | */
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| 24 | template<typename Derived>
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| 25 | template<unsigned int Added>
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| 26 | inline const Flagged<Derived, Added, 0>
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| 27 | MatrixBase<Derived>::marked() const
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| 28 | {
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| 29 | return derived();
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| 30 | }
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| 31 |
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| 32 | /** \deprecated use MatrixBase::noalias()
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| 33 | *
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| 34 | * \returns an expression of *this with the EvalBeforeAssigningBit flag removed.
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| 35 | *
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| 36 | * Example: \include MatrixBase_lazy.cpp
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| 37 | * Output: \verbinclude MatrixBase_lazy.out
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| 38 | *
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| 39 | * \sa class Flagged, marked()
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| 40 | */
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| 41 | template<typename Derived>
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| 42 | inline const Flagged<Derived, 0, EvalBeforeAssigningBit>
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| 43 | MatrixBase<Derived>::lazy() const
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| 44 | {
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| 45 | return derived();
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| 46 | }
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| 47 |
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| 48 |
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| 49 | /** \internal
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| 50 | * Overloaded to perform an efficient C += (A*B).lazy() */
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| 51 | template<typename Derived>
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| 52 | template<typename ProductDerived, typename Lhs, typename Rhs>
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| 53 | Derived& MatrixBase<Derived>::operator+=(const Flagged<ProductBase<ProductDerived, Lhs,Rhs>, 0,
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| 54 | EvalBeforeAssigningBit>& other)
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| 55 | {
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| 56 | other._expression().derived().addTo(derived()); return derived();
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| 57 | }
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| 58 |
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| 59 | /** \internal
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| 60 | * Overloaded to perform an efficient C -= (A*B).lazy() */
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| 61 | template<typename Derived>
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| 62 | template<typename ProductDerived, typename Lhs, typename Rhs>
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| 63 | Derived& MatrixBase<Derived>::operator-=(const Flagged<ProductBase<ProductDerived, Lhs,Rhs>, 0,
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| 64 | EvalBeforeAssigningBit>& other)
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| 65 | {
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| 66 | other._expression().derived().subTo(derived()); return derived();
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| 67 | }
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| 68 |
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| 69 | } // end namespace Eigen
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| 70 |
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| 71 | #endif // EIGEN_LAZY_H
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