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MappedSparseMatrix.h
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Sat, Feb 22, 12:55

MappedSparseMatrix.h
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// This file is part of Eigen, a lightweight C++ template library
// for linear algebra.
//
// Copyright (C) 2008-2014 Gael Guennebaud <gael.guennebaud@inria.fr>
//
// 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_MAPPED_SPARSEMATRIX_H
#define EIGEN_MAPPED_SPARSEMATRIX_H
namespace Eigen {
/** \deprecated Use Map<SparseMatrix<> >
* \class MappedSparseMatrix
*
* \brief Sparse matrix
*
* \param _Scalar the scalar type, i.e. the type of the coefficients
*
* See http://www.netlib.org/linalg/html_templates/node91.html for details on the storage scheme.
*
*/
namespace internal {
template<typename _Scalar, int _Flags, typename _StorageIndex>
struct traits<MappedSparseMatrix<_Scalar, _Flags, _StorageIndex> > : traits<SparseMatrix<_Scalar, _Flags, _StorageIndex> >
{};
} // end namespace internal
template<typename _Scalar, int _Flags, typename _StorageIndex>
class MappedSparseMatrix
: public Map<SparseMatrix<_Scalar, _Flags, _StorageIndex> >
{
typedef Map<SparseMatrix<_Scalar, _Flags, _StorageIndex> > Base;
public:
typedef typename Base::StorageIndex StorageIndex;
typedef typename Base::Scalar Scalar;
inline MappedSparseMatrix(Index rows, Index cols, Index nnz, StorageIndex* outerIndexPtr, StorageIndex* innerIndexPtr, Scalar* valuePtr, StorageIndex* innerNonZeroPtr = 0)
: Base(rows, cols, nnz, outerIndexPtr, innerIndexPtr, valuePtr, innerNonZeroPtr)
{}
/** Empty destructor */
inline ~MappedSparseMatrix() {}
};
namespace internal {
template<typename _Scalar, int _Options, typename _StorageIndex>
struct evaluator<MappedSparseMatrix<_Scalar,_Options,_StorageIndex> >
: evaluator<SparseCompressedBase<MappedSparseMatrix<_Scalar,_Options,_StorageIndex> > >
{
typedef MappedSparseMatrix<_Scalar,_Options,_StorageIndex> XprType;
typedef evaluator<SparseCompressedBase<XprType> > Base;
evaluator() : Base() {}
explicit evaluator(const XprType &mat) : Base(mat) {}
};
}
} // end namespace Eigen
#endif // EIGEN_MAPPED_SPARSEMATRIX_H

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