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Diffstat (limited to 'extern/Eigen3/Eigen/src/Sparse/SparseTranspose.h')
-rw-r--r-- | extern/Eigen3/Eigen/src/Sparse/SparseTranspose.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/extern/Eigen3/Eigen/src/Sparse/SparseTranspose.h b/extern/Eigen3/Eigen/src/Sparse/SparseTranspose.h new file mode 100644 index 00000000000..2aea2fa32c7 --- /dev/null +++ b/extern/Eigen3/Eigen/src/Sparse/SparseTranspose.h @@ -0,0 +1,68 @@ +// This file is part of Eigen, a lightweight C++ template library +// for linear algebra. +// +// Copyright (C) 2008-2009 Gael Guennebaud <gael.guennebaud@inria.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_SPARSETRANSPOSE_H +#define EIGEN_SPARSETRANSPOSE_H + +template<typename MatrixType> class TransposeImpl<MatrixType,Sparse> + : public SparseMatrixBase<Transpose<MatrixType> > +{ + typedef typename internal::remove_all<typename MatrixType::Nested>::type _MatrixTypeNested; + public: + + EIGEN_SPARSE_PUBLIC_INTERFACE(Transpose<MatrixType>) + + class InnerIterator; + class ReverseInnerIterator; + + inline Index nonZeros() const { return derived().nestedExpression().nonZeros(); } +}; + +template<typename MatrixType> class TransposeImpl<MatrixType,Sparse>::InnerIterator + : public _MatrixTypeNested::InnerIterator +{ + typedef typename _MatrixTypeNested::InnerIterator Base; + public: + + EIGEN_STRONG_INLINE InnerIterator(const TransposeImpl& trans, Index outer) + : Base(trans.derived().nestedExpression(), outer) + {} + inline Index row() const { return Base::col(); } + inline Index col() const { return Base::row(); } +}; + +template<typename MatrixType> class TransposeImpl<MatrixType,Sparse>::ReverseInnerIterator + : public _MatrixTypeNested::ReverseInnerIterator +{ + typedef typename _MatrixTypeNested::ReverseInnerIterator Base; + public: + + EIGEN_STRONG_INLINE ReverseInnerIterator(const TransposeImpl& xpr, Index outer) + : Base(xpr.derived().nestedExpression(), outer) + {} + inline Index row() const { return Base::col(); } + inline Index col() const { return Base::row(); } +}; + +#endif // EIGEN_SPARSETRANSPOSE_H |