// This file is part of Eigen, a lightweight C++ template library // for linear algebra. // // Copyright (C) 2008-2010 Gael Guennebaud <gael.guennebaud@inria.fr> // Copyright (C) 2006-2008 Benoit Jacob <jacob.benoit.1@gmail.com> // // This Source Code Form is subject to the terms of the Mozilla // Public License v. 2.0. If a copy of the MPL was not distributed // with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
/** \class VectorBlock * \ingroup Core_Module * * \brief Expression of a fixed-size or dynamic-size sub-vector * * \tparam VectorType the type of the object in which we are taking a sub-vector * \tparam Size size of the sub-vector we are taking at compile time (optional) * * This class represents an expression of either a fixed-size or dynamic-size sub-vector. * It is the return type of DenseBase::segment(Index,Index) and DenseBase::segment<int>(Index) and * most of the time this is the only way it is used. * * However, if you want to directly manipulate sub-vector expressions, * for instance if you want to write a function returning such an expression, you * will need to use this class. * * Here is an example illustrating the dynamic case: * \include class_VectorBlock.cpp * Output: \verbinclude class_VectorBlock.out * * \note Even though this expression has dynamic size, in the case where \a VectorType * has fixed size, this expression inherits a fixed maximal size which means that evaluating * it does not cause a dynamic memory allocation. * * Here is an example illustrating the fixed-size case: * \include class_FixedVectorBlock.cpp * Output: \verbinclude class_FixedVectorBlock.out * * \sa class Block, DenseBase::segment(Index,Index,Index,Index), DenseBase::segment(Index,Index)
*/ template<typename VectorType, int Size> class VectorBlock
: public Block<VectorType,
internal::traits<VectorType>::Flags & RowMajorBit ? 1 : Size,
internal::traits<VectorType>::Flags & RowMajorBit ? Size : 1>
{ typedef Block<VectorType,
internal::traits<VectorType>::Flags & RowMajorBit ? 1 : Size,
internal::traits<VectorType>::Flags & RowMajorBit ? Size : 1> Base; enum {
IsColVector = !(internal::traits<VectorType>::Flags & RowMajorBit)
}; public:
EIGEN_DENSE_PUBLIC_INTERFACE(VectorBlock)
Die Informationen auf dieser Webseite wurden
nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
noch Qualität der bereit gestellten Informationen zugesichert.
Bemerkung:
Die farbliche Syntaxdarstellung ist noch experimentell.