| 1 | // This file is part of Eigen, a lightweight C++ template library
|
|---|
| 2 | // for linear algebra.
|
|---|
| 3 | //
|
|---|
| 4 | // Copyright (C) 2008-2009 Gael Guennebaud <gael.guennebaud@inria.fr>
|
|---|
| 5 | //
|
|---|
| 6 | // This Source Code Form is subject to the terms of the Mozilla
|
|---|
| 7 | // Public License v. 2.0. If a copy of the MPL was not distributed
|
|---|
| 8 | // with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
|
|---|
| 9 |
|
|---|
| 10 | #ifndef EIGEN_SPARSETRANSPOSE_H
|
|---|
| 11 | #define EIGEN_SPARSETRANSPOSE_H
|
|---|
| 12 |
|
|---|
| 13 | namespace Eigen {
|
|---|
| 14 |
|
|---|
| 15 | template<typename MatrixType> class TransposeImpl<MatrixType,Sparse>
|
|---|
| 16 | : public SparseMatrixBase<Transpose<MatrixType> >
|
|---|
| 17 | {
|
|---|
| 18 | typedef typename internal::remove_all<typename MatrixType::Nested>::type _MatrixTypeNested;
|
|---|
| 19 | public:
|
|---|
| 20 |
|
|---|
| 21 | EIGEN_SPARSE_PUBLIC_INTERFACE(Transpose<MatrixType> )
|
|---|
| 22 |
|
|---|
| 23 | class InnerIterator;
|
|---|
| 24 | class ReverseInnerIterator;
|
|---|
| 25 |
|
|---|
| 26 | inline Index nonZeros() const { return derived().nestedExpression().nonZeros(); }
|
|---|
| 27 | };
|
|---|
| 28 |
|
|---|
| 29 | // NOTE: VC10 and VC11 trigger an ICE if don't put typename TransposeImpl<MatrixType,Sparse>:: in front of Index,
|
|---|
| 30 | // a typedef typename TransposeImpl<MatrixType,Sparse>::Index Index;
|
|---|
| 31 | // does not fix the issue.
|
|---|
| 32 | // An alternative is to define the nested class in the parent class itself.
|
|---|
| 33 | template<typename MatrixType> class TransposeImpl<MatrixType,Sparse>::InnerIterator
|
|---|
| 34 | : public _MatrixTypeNested::InnerIterator
|
|---|
| 35 | {
|
|---|
| 36 | typedef typename _MatrixTypeNested::InnerIterator Base;
|
|---|
| 37 | typedef typename TransposeImpl::Index Index;
|
|---|
| 38 | public:
|
|---|
| 39 |
|
|---|
| 40 | EIGEN_STRONG_INLINE InnerIterator(const TransposeImpl& trans, typename TransposeImpl<MatrixType,Sparse>::Index outer)
|
|---|
| 41 | : Base(trans.derived().nestedExpression(), outer)
|
|---|
| 42 | {}
|
|---|
| 43 | typename TransposeImpl<MatrixType,Sparse>::Index row() const { return Base::col(); }
|
|---|
| 44 | typename TransposeImpl<MatrixType,Sparse>::Index col() const { return Base::row(); }
|
|---|
| 45 | };
|
|---|
| 46 |
|
|---|
| 47 | template<typename MatrixType> class TransposeImpl<MatrixType,Sparse>::ReverseInnerIterator
|
|---|
| 48 | : public _MatrixTypeNested::ReverseInnerIterator
|
|---|
| 49 | {
|
|---|
| 50 | typedef typename _MatrixTypeNested::ReverseInnerIterator Base;
|
|---|
| 51 | typedef typename TransposeImpl::Index Index;
|
|---|
| 52 | public:
|
|---|
| 53 |
|
|---|
| 54 | EIGEN_STRONG_INLINE ReverseInnerIterator(const TransposeImpl& xpr, typename TransposeImpl<MatrixType,Sparse>::Index outer)
|
|---|
| 55 | : Base(xpr.derived().nestedExpression(), outer)
|
|---|
| 56 | {}
|
|---|
| 57 | typename TransposeImpl<MatrixType,Sparse>::Index row() const { return Base::col(); }
|
|---|
| 58 | typename TransposeImpl<MatrixType,Sparse>::Index col() const { return Base::row(); }
|
|---|
| 59 | };
|
|---|
| 60 |
|
|---|
| 61 | } // end namespace Eigen
|
|---|
| 62 |
|
|---|
| 63 | #endif // EIGEN_SPARSETRANSPOSE_H
|
|---|
