mirror of
https://gitlab.com/libeigen/eigen.git
synced 2026-04-10 11:34:33 +08:00
finish to merge Array into Core:
- mv Array/* into Core/ - merge Functors.h files, and move Norms.h into Dot.h
This commit is contained in:
Gael Guennebaud
194
Eigen/src/Core/ArrayWrapper.h
Normal file
194
Eigen/src/Core/ArrayWrapper.h
Normal file
@@ -0,0 +1,194 @@
|
||||
// This file is part of Eigen, a lightweight C++ template library
|
||||
// for linear algebra.
|
||||
//
|
||||
// Copyright (C) 2009-2010 Gael Guennebaud <g.gael@free.fr>
|
||||
//
|
||||
// Eigen is free software; you can redistribute it and/or
|
||||
// modify it under the terms of the GNU Lesser General Public
|
||||
// License as published by the Free Software Foundation; either
|
||||
// version 3 of the License, or (at your option) any later version.
|
||||
//
|
||||
// Alternatively, you can redistribute it and/or
|
||||
// modify it under the terms of the GNU General Public License as
|
||||
// published by the Free Software Foundation; either version 2 of
|
||||
// the License, or (at your option) any later version.
|
||||
//
|
||||
// Eigen is distributed in the hope that it will be useful, but WITHOUT ANY
|
||||
// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
|
||||
// FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License or the
|
||||
// GNU General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU Lesser General Public
|
||||
// License and a copy of the GNU General Public License along with
|
||||
// Eigen. If not, see <http://www.gnu.org/licenses/>.
|
||||
|
||||
#ifndef EIGEN_ARRAYWRAPPER_H
|
||||
#define EIGEN_ARRAYWRAPPER_H
|
||||
|
||||
/** \class ArrayWrapper
|
||||
*
|
||||
* \brief Expression of a mathematical vector or matrix as an array object
|
||||
*
|
||||
* This class is the return type of MatrixBase::array(), and most of the time
|
||||
* this is the only way it is use.
|
||||
*
|
||||
* \sa MatrixBase::array(), class MatrixWrapper
|
||||
*/
|
||||
template<typename ExpressionType>
|
||||
struct ei_traits<ArrayWrapper<ExpressionType> >
|
||||
: public ei_traits<typename ei_cleantype<typename ExpressionType::Nested>::type >
|
||||
{
|
||||
typedef ArrayXpr XprKind;
|
||||
};
|
||||
|
||||
template<typename ExpressionType>
|
||||
class ArrayWrapper : public ArrayBase<ArrayWrapper<ExpressionType> >
|
||||
{
|
||||
public:
|
||||
typedef ArrayBase<ArrayWrapper> Base;
|
||||
EIGEN_DENSE_PUBLIC_INTERFACE(ArrayWrapper)
|
||||
EIGEN_INHERIT_ASSIGNMENT_OPERATORS(ArrayWrapper)
|
||||
|
||||
typedef typename ei_nested<ExpressionType>::type NestedExpressionType;
|
||||
|
||||
inline ArrayWrapper(const ExpressionType& matrix) : m_expression(matrix) {}
|
||||
|
||||
inline Index rows() const { return m_expression.rows(); }
|
||||
inline Index cols() const { return m_expression.cols(); }
|
||||
inline Index outerStride() const { return m_expression.outerStride(); }
|
||||
inline Index innerStride() const { return m_expression.innerStride(); }
|
||||
|
||||
inline const CoeffReturnType coeff(Index row, Index col) const
|
||||
{
|
||||
return m_expression.coeff(row, col);
|
||||
}
|
||||
|
||||
inline Scalar& coeffRef(Index row, Index col)
|
||||
{
|
||||
return m_expression.const_cast_derived().coeffRef(row, col);
|
||||
}
|
||||
|
||||
inline const CoeffReturnType coeff(Index index) const
|
||||
{
|
||||
return m_expression.coeff(index);
|
||||
}
|
||||
|
||||
inline Scalar& coeffRef(Index index)
|
||||
{
|
||||
return m_expression.const_cast_derived().coeffRef(index);
|
||||
}
|
||||
|
||||
template<int LoadMode>
|
||||
inline const PacketScalar packet(Index row, Index col) const
|
||||
{
|
||||
return m_expression.template packet<LoadMode>(row, col);
|
||||
}
|
||||
|
||||
template<int LoadMode>
|
||||
inline void writePacket(Index row, Index col, const PacketScalar& x)
|
||||
{
|
||||
m_expression.const_cast_derived().template writePacket<LoadMode>(row, col, x);
|
||||
}
|
||||
|
||||
template<int LoadMode>
|
||||
inline const PacketScalar packet(Index index) const
|
||||
{
|
||||
return m_expression.template packet<LoadMode>(index);
|
||||
}
|
||||
|
||||
template<int LoadMode>
|
||||
inline void writePacket(Index index, const PacketScalar& x)
|
||||
{
|
||||
m_expression.const_cast_derived().template writePacket<LoadMode>(index, x);
|
||||
}
|
||||
|
||||
template<typename Dest>
|
||||
inline void evalTo(Dest& dst) const { dst = m_expression; }
|
||||
|
||||
protected:
|
||||
const NestedExpressionType m_expression;
|
||||
};
|
||||
|
||||
/** \class MatrixWrapper
|
||||
*
|
||||
* \brief Expression of an array as a mathematical vector or matrix
|
||||
*
|
||||
* This class is the return type of ArrayBase::matrix(), and most of the time
|
||||
* this is the only way it is use.
|
||||
*
|
||||
* \sa MatrixBase::matrix(), class ArrayWrapper
|
||||
*/
|
||||
|
||||
template<typename ExpressionType>
|
||||
struct ei_traits<MatrixWrapper<ExpressionType> >
|
||||
: public ei_traits<typename ei_cleantype<typename ExpressionType::Nested>::type >
|
||||
{
|
||||
typedef MatrixXpr XprKind;
|
||||
};
|
||||
|
||||
template<typename ExpressionType>
|
||||
class MatrixWrapper : public MatrixBase<MatrixWrapper<ExpressionType> >
|
||||
{
|
||||
public:
|
||||
typedef MatrixBase<MatrixWrapper<ExpressionType> > Base;
|
||||
EIGEN_DENSE_PUBLIC_INTERFACE(MatrixWrapper)
|
||||
EIGEN_INHERIT_ASSIGNMENT_OPERATORS(MatrixWrapper)
|
||||
|
||||
typedef typename ei_nested<ExpressionType>::type NestedExpressionType;
|
||||
|
||||
inline MatrixWrapper(const ExpressionType& matrix) : m_expression(matrix) {}
|
||||
|
||||
inline Index rows() const { return m_expression.rows(); }
|
||||
inline Index cols() const { return m_expression.cols(); }
|
||||
inline Index outerStride() const { return m_expression.outerStride(); }
|
||||
inline Index innerStride() const { return m_expression.innerStride(); }
|
||||
|
||||
inline const CoeffReturnType coeff(Index row, Index col) const
|
||||
{
|
||||
return m_expression.coeff(row, col);
|
||||
}
|
||||
|
||||
inline Scalar& coeffRef(Index row, Index col)
|
||||
{
|
||||
return m_expression.const_cast_derived().coeffRef(row, col);
|
||||
}
|
||||
|
||||
inline const CoeffReturnType coeff(Index index) const
|
||||
{
|
||||
return m_expression.coeff(index);
|
||||
}
|
||||
|
||||
inline Scalar& coeffRef(Index index)
|
||||
{
|
||||
return m_expression.const_cast_derived().coeffRef(index);
|
||||
}
|
||||
|
||||
template<int LoadMode>
|
||||
inline const PacketScalar packet(Index row, Index col) const
|
||||
{
|
||||
return m_expression.template packet<LoadMode>(row, col);
|
||||
}
|
||||
|
||||
template<int LoadMode>
|
||||
inline void writePacket(Index row, Index col, const PacketScalar& x)
|
||||
{
|
||||
m_expression.const_cast_derived().template writePacket<LoadMode>(row, col, x);
|
||||
}
|
||||
|
||||
template<int LoadMode>
|
||||
inline const PacketScalar packet(Index index) const
|
||||
{
|
||||
return m_expression.template packet<LoadMode>(index);
|
||||
}
|
||||
|
||||
template<int LoadMode>
|
||||
inline void writePacket(Index index, const PacketScalar& x)
|
||||
{
|
||||
m_expression.const_cast_derived().template writePacket<LoadMode>(index, x);
|
||||
}
|
||||
|
||||
protected:
|
||||
const NestedExpressionType m_expression;
|
||||
};
|
||||
|
||||
#endif // EIGEN_ARRAYWRAPPER_H
|
||||
Reference in New Issue
Block a user