83 lines
2.8 KiB
C++
83 lines
2.8 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) 2008 Benoit Jacob <jacob.benoit.1@gmail.com>
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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_LAZY_H
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#define EIGEN_LAZY_H
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/** \deprecated it is only used by lazy() which is deprecated
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*
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* \returns an expression of *this with added flags
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*
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* Example: \include MatrixBase_marked.cpp
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* Output: \verbinclude MatrixBase_marked.out
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*
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* \sa class Flagged, extract(), part()
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*/
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template<typename Derived>
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template<unsigned int Added>
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inline const Flagged<Derived, Added, 0>
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MatrixBase<Derived>::marked() const
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{
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return derived();
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}
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/** \deprecated use MatrixBase::noalias()
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*
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* \returns an expression of *this with the EvalBeforeAssigningBit flag removed.
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*
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* Example: \include MatrixBase_lazy.cpp
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* Output: \verbinclude MatrixBase_lazy.out
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*
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* \sa class Flagged, marked()
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*/
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template<typename Derived>
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inline const Flagged<Derived, 0, EvalBeforeAssigningBit>
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MatrixBase<Derived>::lazy() const
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{
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return derived();
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}
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/** \internal
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* Overloaded to perform an efficient C += (A*B).lazy() */
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template<typename Derived>
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template<typename ProductDerived, typename Lhs, typename Rhs>
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Derived& MatrixBase<Derived>::operator+=(const Flagged<ProductBase<ProductDerived, Lhs,Rhs>, 0,
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EvalBeforeAssigningBit>& other)
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{
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other._expression().derived().addTo(derived()); return derived();
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}
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/** \internal
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* Overloaded to perform an efficient C -= (A*B).lazy() */
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template<typename Derived>
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template<typename ProductDerived, typename Lhs, typename Rhs>
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Derived& MatrixBase<Derived>::operator-=(const Flagged<ProductBase<ProductDerived, Lhs,Rhs>, 0,
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EvalBeforeAssigningBit>& other)
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{
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other._expression().derived().subTo(derived()); return derived();
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}
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#endif // EIGEN_LAZY_H
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