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* vectorize dot product, copying code from sum.

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* make the conj functor vectorizable: it is just identity in real case,
  and complex doesn't use the vectorized path anyway.
* fix bug in Block: a 3x1 block in a 4x4 matrix (all fixed-size)
  should not be vectorizable, since in fixed-size we are assuming
  the size to be a multiple of packet size. (Or would you prefer
  Vector3d to be flagged "packetaccess" even though no packet access
  is possible on vectors of that type?)
* rename:
  isOrtho for vectors ---> isOrthogonal
  isOrtho for matrices ---> isUnitary
* add normalize()
* reimplement normalized with quotient1 functor
This commit is contained in:
Benoit Jacob
2008-06-24 15:13:00 +00:00
parent c9560df4a0
commit 3b94436d2f
12 changed files with 270 additions and 69 deletions
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16
Eigen/src/Core/Functors.h
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@@ -169,7 +169,12 @@ template<typename Scalar> struct ei_scalar_abs_op EIGEN_EMPTY_STRUCT {
};
template<typename Scalar>
struct ei_functor_traits<ei_scalar_abs_op<Scalar> >
{ enum { Cost = NumTraits<Scalar>::AddCost, PacketAccess = false }; };
{
enum {
Cost = NumTraits<Scalar>::AddCost,
PacketAccess = false // this could actually be vectorized with SSSE3.
};
};
/** \internal
* \brief Template functor to compute the squared absolute value of a scalar
@@ -194,10 +199,17 @@ struct ei_functor_traits<ei_scalar_abs2_op<Scalar> >
*/
template<typename Scalar> struct ei_scalar_conjugate_op EIGEN_EMPTY_STRUCT {
inline const Scalar operator() (const Scalar& a) const { return ei_conj(a); }
template<typename PacketScalar>
inline const PacketScalar packetOp(const PacketScalar& a) const { return a; }
};
template<typename Scalar>
struct ei_functor_traits<ei_scalar_conjugate_op<Scalar> >
{ enum { Cost = NumTraits<Scalar>::IsComplex ? NumTraits<Scalar>::AddCost : 0, PacketAccess = false }; };
{
enum {
Cost = NumTraits<Scalar>::IsComplex ? NumTraits<Scalar>::AddCost : 0,
PacketAccess = int(ei_packet_traits<Scalar>::size)>1
};
};
/** \internal
* \brief Template functor to cast a scalar to another type