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As proposed on the list:

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- rename EvalBeforeAssignBit to MayAliasBit
- make .lazy() remove the MayAliasBit only, and mark it as deprecated
- add a NoAlias pseudo expression, and MatrixBase::noalias() function
Todo:
- we have to decide whether += and -= assume no aliasing by default ?
- once we agree on the API: update the Sparse module and the unit tests respectively.
This commit is contained in:
Gael Guennebaud
2009-08-15 18:35:51 +02:00
parent 13a8956188
commit 50c703f0c7
14 changed files with 138 additions and 29 deletions
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13
Eigen/src/Core/MatrixBase.h
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@@ -326,9 +326,10 @@ template<typename Derived> class MatrixBase
template<typename OtherDerived>
Derived& lazyAssign(const MatrixBase<OtherDerived>& other);
/** Overloaded for cache friendly product evaluation */
/** \deprecated because .lazy() is deprecated
* Overloaded for cache friendly product evaluation */
template<typename OtherDerived>
Derived& lazyAssign(const Flagged<OtherDerived, 0, EvalBeforeNestingBit | EvalBeforeAssigningBit>& other)
Derived& lazyAssign(const Flagged<OtherDerived, 0, MayAliasBit>& other)
{ return lazyAssign(other._expression()); }
template<typename ProductDerived, typename Lhs, typename Rhs>
@@ -336,11 +337,11 @@ template<typename Derived> class MatrixBase
template<typename ProductDerived, typename Lhs, typename Rhs>
Derived& operator+=(const Flagged<ProductBase<ProductDerived, Lhs,Rhs>, 0,
EvalBeforeNestingBit | EvalBeforeAssigningBit>& other);
MayAliasBit>& other);
template<typename ProductDerived, typename Lhs, typename Rhs>
Derived& operator-=(const Flagged<ProductBase<ProductDerived, Lhs,Rhs>, 0,
EvalBeforeNestingBit | EvalBeforeAssigningBit>& other);
MayAliasBit>& other);
#endif // not EIGEN_PARSED_BY_DOXYGEN
CommaInitializer<Derived> operator<< (const Scalar& s);
@@ -614,7 +615,9 @@ template<typename Derived> class MatrixBase
template<unsigned int Added>
const Flagged<Derived, Added, 0> marked() const;
const Flagged<Derived, 0, EvalBeforeNestingBit | EvalBeforeAssigningBit> lazy() const;
const Flagged<Derived, 0, MayAliasBit> lazy() const;
NoAlias<Derived> noalias();
/** \returns number of elements to skip to pass from one row (resp. column) to another
* for a row-major (resp. column-major) matrix.