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* refactoring of Product:

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* use ProductReturnType<>::Type to get the correct Product xpr type
  * Product is no longer instanciated for xpr types which are evaluated
  * vectorization of "a.transpose() * b" for the normal product (small and fixed-size matrix)
  * some cleanning
* removed ArrayBase
This commit is contained in:
Gael Guennebaud
2008-06-19 17:33:57 +00:00
parent 5dbfed1902
commit 82c3cea1d5
12 changed files with 359 additions and 247 deletions
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9
Eigen/src/Core/util/Meta.h
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@@ -160,10 +160,7 @@ class ei_corrected_matrix_flags
packet_access_bit
= ei_packet_traits<Scalar>::size > 1
&& (is_big || inner_size%ei_packet_traits<Scalar>::size==0)
? PacketAccessBit : 0,
_flags1 = (SuggestedFlags & ~(EvalBeforeNestingBit | EvalBeforeAssigningBit | PacketAccessBit | RowMajorBit))
| LinearAccessBit | DirectAccessBit
? PacketAccessBit : 0
};
public:
@@ -208,7 +205,7 @@ template<typename T> struct ei_must_nest_by_value { enum { ret = false }; };
template<typename T> struct ei_must_nest_by_value<NestByValue<T> > { enum { ret = true }; };
template<typename T, int n=1> struct ei_nested
template<typename T, int n=1, typename EvalType = typename ei_eval<T>::type> struct ei_nested
{
typedef typename ei_meta_if<
ei_must_nest_by_value<T>::ret,
@@ -216,7 +213,7 @@ template<typename T, int n=1> struct ei_nested
typename ei_meta_if<
(int(ei_traits<T>::Flags) & EvalBeforeNestingBit)
|| ((n+1) * int(NumTraits<typename ei_traits<T>::Scalar>::ReadCost) <= (n-1) * int(T::CoeffReadCost)),
typename ei_eval<T>::type,
EvalType,
const T&
>::ret
>::ret type;