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the big Array/Cwise rework as discussed on the mailing list. The new API

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can be seen in Eigen/src/Core/Cwise.h.
This commit is contained in:
Benoit Jacob
2008-07-08 00:49:10 +00:00
parent c910c517b3
commit f5791eeb70
26 changed files with 465 additions and 389 deletions
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57
Eigen/src/Array/Functors.h
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@@ -25,15 +25,6 @@
#ifndef EIGEN_ARRAY_FUNCTORS_H
#define EIGEN_ARRAY_FUNCTORS_H
/** \internal
* \array_module
*
* \brief Template functor to add a scalar to a fixed other one
*
* \sa class CwiseUnaryOp, Array::operator+
*/
template<typename Scalar, bool PacketAccess = (int(ei_packet_traits<Scalar>::size)>1?true:false) > struct ei_scalar_add_op;
template<typename Scalar>
struct ei_scalar_add_op<Scalar,true> {
typedef typename ei_packet_traits<Scalar>::type PacketScalar;
@@ -150,17 +141,59 @@ struct ei_functor_traits<ei_scalar_pow_op<Scalar> >
*
* \array_module
*
* \brief Template functor to compute the reciprocal of a scalar
* \brief Template functor to compute the inverse of a scalar
*
* \sa class CwiseUnaryOp, MatrixBase::cwiseInverse
* \sa class CwiseUnaryOp, Cwise::inverse()
*/
template<typename Scalar>
struct ei_scalar_inverse_op {
inline Scalar operator() (const Scalar& a) const { return Scalar(1)/a; }
template<typename PacketScalar>
inline const PacketScalar packetOp(const PacketScalar& a) const
{ return ei_div(ei_pset1(Scalar(1)),a); }
};
template<typename Scalar>
struct ei_functor_traits<ei_scalar_inverse_op<Scalar> >
{ enum { Cost = NumTraits<Scalar>::MulCost, PacketAccess = false }; };
{ enum { Cost = NumTraits<Scalar>::MulCost, PacketAccess = int(ei_packet_traits<Scalar>::size)>1 }; };
/** \internal
*
* \array_module
*
* \brief Template functor to compute the square of a scalar
*
* \sa class CwiseUnaryOp, Cwise::square()
*/
template<typename Scalar>
struct ei_scalar_square_op {
inline Scalar operator() (const Scalar& a) const { return a*a; }
template<typename PacketScalar>
inline const PacketScalar packetOp(const PacketScalar& a) const
{ return ei_pmul(a,a); }
};
template<typename Scalar>
struct ei_functor_traits<ei_scalar_square_op<Scalar> >
{ enum { Cost = NumTraits<Scalar>::MulCost, PacketAccess = int(ei_packet_traits<Scalar>::size)>1 }; };
/** \internal
*
* \array_module
*
* \brief Template functor to compute the cube of a scalar
*
* \sa class CwiseUnaryOp, Cwise::cube()
*/
template<typename Scalar>
struct ei_scalar_cube_op {
inline Scalar operator() (const Scalar& a) const { return a*a*a; }
template<typename PacketScalar>
inline const PacketScalar packetOp(const PacketScalar& a) const
{ return ei_pmul(a,ei_pmul(a,a)); }
};
template<typename Scalar>
struct ei_functor_traits<ei_scalar_cube_op<Scalar> >
{ enum { Cost = 2*NumTraits<Scalar>::MulCost, PacketAccess = int(ei_packet_traits<Scalar>::size)>1 }; };
// default ei_functor_traits for STL functors: