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Diffstat (limited to 'runtimes/nn/depend/external/eigen/Eigen/src/Core/VectorBlock.h')
-rw-r--r-- | runtimes/nn/depend/external/eigen/Eigen/src/Core/VectorBlock.h | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/runtimes/nn/depend/external/eigen/Eigen/src/Core/VectorBlock.h b/runtimes/nn/depend/external/eigen/Eigen/src/Core/VectorBlock.h new file mode 100644 index 000000000..d72fbf7e9 --- /dev/null +++ b/runtimes/nn/depend/external/eigen/Eigen/src/Core/VectorBlock.h @@ -0,0 +1,96 @@ +// 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/. + +#ifndef EIGEN_VECTORBLOCK_H +#define EIGEN_VECTORBLOCK_H + +namespace Eigen { + +namespace internal { +template<typename VectorType, int Size> +struct traits<VectorBlock<VectorType, Size> > + : public traits<Block<VectorType, + traits<VectorType>::Flags & RowMajorBit ? 1 : Size, + traits<VectorType>::Flags & RowMajorBit ? Size : 1> > +{ +}; +} + +/** \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 maniputate 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) + + using Base::operator=; + + /** Dynamic-size constructor + */ + EIGEN_DEVICE_FUNC + inline VectorBlock(VectorType& vector, Index start, Index size) + : Base(vector, + IsColVector ? start : 0, IsColVector ? 0 : start, + IsColVector ? size : 1, IsColVector ? 1 : size) + { + EIGEN_STATIC_ASSERT_VECTOR_ONLY(VectorBlock); + } + + /** Fixed-size constructor + */ + EIGEN_DEVICE_FUNC + inline VectorBlock(VectorType& vector, Index start) + : Base(vector, IsColVector ? start : 0, IsColVector ? 0 : start) + { + EIGEN_STATIC_ASSERT_VECTOR_ONLY(VectorBlock); + } +}; + + +} // end namespace Eigen + +#endif // EIGEN_VECTORBLOCK_H |