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introduce a new LvalueBit flag and split DenseCoeffBase into three level of accessors

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This commit is contained in:
Gael Guennebaud
2010-07-21 10:57:01 +02:00
parent 3abbdfd621
commit 95f2e7f3f5
14 changed files with 56 additions and 20 deletions
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28
Eigen/src/Core/DenseCoeffsBase.h
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@@ -25,15 +25,15 @@
#ifndef EIGEN_DENSECOEFFSBASE_H
#define EIGEN_DENSECOEFFSBASE_H
template<typename Derived, bool EnableDirectAccessAPI>
class DenseCoeffsBase : public EigenBase<Derived>
template<typename Derived>
class DenseCoeffsBase<Derived,ReadOnlyAccessors> : public EigenBase<Derived>
{
public:
typedef typename ei_traits<Derived>::StorageKind StorageKind;
typedef typename ei_traits<Derived>::Index Index;
typedef typename ei_traits<Derived>::Scalar Scalar;
typedef typename ei_packet_traits<Scalar>::type PacketScalar;
typedef typename ei_meta_if<ei_has_direct_access<Derived>::ret,
typedef typename ei_meta_if<bool(ei_traits<Derived>::Flags&LvalueBit),
const Scalar&,
typename ei_meta_if<ei_is_arithmetic<Scalar>::ret, Scalar, const Scalar>::ret
>::ret CoeffReturnType;
@@ -239,11 +239,11 @@ class DenseCoeffsBase : public EigenBase<Derived>
};
template<typename Derived>
class DenseCoeffsBase<Derived, true> : public DenseCoeffsBase<Derived, false>
class DenseCoeffsBase<Derived, WriteAccessors> : public DenseCoeffsBase<Derived, ReadOnlyAccessors>
{
public:
typedef DenseCoeffsBase<Derived, false> Base;
typedef DenseCoeffsBase<Derived, ReadOnlyAccessors> Base;
typedef typename ei_traits<Derived>::StorageKind StorageKind;
typedef typename ei_traits<Derived>::Index Index;
@@ -512,6 +512,23 @@ class DenseCoeffsBase<Derived, true> : public DenseCoeffsBase<Derived, false>
}
#endif
};
template<typename Derived>
class DenseCoeffsBase<Derived, DirectAccessors> : public DenseCoeffsBase<Derived, WriteAccessors>
{
public:
typedef DenseCoeffsBase<Derived, WriteAccessors> Base;
typedef typename ei_traits<Derived>::Index Index;
typedef typename ei_traits<Derived>::Scalar Scalar;
typedef typename NumTraits<Scalar>::Real RealScalar;
using Base::rows;
using Base::cols;
using Base::size;
using Base::derived;
/** \returns the pointer increment between two consecutive elements within a slice in the inner direction.
*
* \sa outerStride(), rowStride(), colStride()
@@ -531,6 +548,7 @@ class DenseCoeffsBase<Derived, true> : public DenseCoeffsBase<Derived, false>
return derived().outerStride();
}
// FIXME shall we remove it ?
inline Index stride() const
{
return Derived::IsVectorAtCompileTime ? innerStride() : outerStride();