From 7fd8418b199cda8b7facb37fccbe871375c5b6d2 Mon Sep 17 00:00:00 2001 From: Gael Guennebaud Date: Sat, 19 Jun 2010 23:36:38 +0200 Subject: finish to merge Array into Core: - mv Array/* into Core/ - merge Functors.h files, and move Norms.h into Dot.h --- Eigen/src/Core/ArrayWrapper.h | 194 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 194 insertions(+) create mode 100644 Eigen/src/Core/ArrayWrapper.h (limited to 'Eigen/src/Core/ArrayWrapper.h') diff --git a/Eigen/src/Core/ArrayWrapper.h b/Eigen/src/Core/ArrayWrapper.h new file mode 100644 index 000000000..98d388d67 --- /dev/null +++ b/Eigen/src/Core/ArrayWrapper.h @@ -0,0 +1,194 @@ +// This file is part of Eigen, a lightweight C++ template library +// for linear algebra. +// +// Copyright (C) 2009-2010 Gael Guennebaud +// +// 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 . + +#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 +struct ei_traits > + : public ei_traits::type > +{ + typedef ArrayXpr XprKind; +}; + +template +class ArrayWrapper : public ArrayBase > +{ + public: + typedef ArrayBase Base; + EIGEN_DENSE_PUBLIC_INTERFACE(ArrayWrapper) + EIGEN_INHERIT_ASSIGNMENT_OPERATORS(ArrayWrapper) + + typedef typename ei_nested::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 + inline const PacketScalar packet(Index row, Index col) const + { + return m_expression.template packet(row, col); + } + + template + inline void writePacket(Index row, Index col, const PacketScalar& x) + { + m_expression.const_cast_derived().template writePacket(row, col, x); + } + + template + inline const PacketScalar packet(Index index) const + { + return m_expression.template packet(index); + } + + template + inline void writePacket(Index index, const PacketScalar& x) + { + m_expression.const_cast_derived().template writePacket(index, x); + } + + template + 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 +struct ei_traits > + : public ei_traits::type > +{ + typedef MatrixXpr XprKind; +}; + +template +class MatrixWrapper : public MatrixBase > +{ + public: + typedef MatrixBase > Base; + EIGEN_DENSE_PUBLIC_INTERFACE(MatrixWrapper) + EIGEN_INHERIT_ASSIGNMENT_OPERATORS(MatrixWrapper) + + typedef typename ei_nested::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 + inline const PacketScalar packet(Index row, Index col) const + { + return m_expression.template packet(row, col); + } + + template + inline void writePacket(Index row, Index col, const PacketScalar& x) + { + m_expression.const_cast_derived().template writePacket(row, col, x); + } + + template + inline const PacketScalar packet(Index index) const + { + return m_expression.template packet(index); + } + + template + inline void writePacket(Index index, const PacketScalar& x) + { + m_expression.const_cast_derived().template writePacket(index, x); + } + + protected: + const NestedExpressionType m_expression; +}; + +#endif // EIGEN_ARRAYWRAPPER_H -- cgit v1.2.3