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//
// EpetraExt: Epetra Extended - Linear Algebra Services Package
// Copyright (2011) Sandia Corporation
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#ifndef EpetraExt_CRSMATRIX_REINDEX_H
#define EpetraExt_CRSMATRIX_REINDEX_H
#include <EpetraExt_Transform.h>
class Epetra_CrsMatrix;
class Epetra_Map;
namespace EpetraExt {
///
/** Given an Epetra_CrsMatrix, a "reindexed" version is returned based on
* the new row map. The row map must be conformal to the original. The
* Matrix data will be shared by the new Matrix using the new indexing
*/
class CrsMatrix_Reindex : public ViewTransform<Epetra_CrsMatrix> {
const Epetra_Map & NewRowMap_;
Epetra_Map * NewColMap_;
public:
///
/** Destructor
*/
~CrsMatrix_Reindex();
///
/** Constructor
*/
CrsMatrix_Reindex( const Epetra_Map & new_row_map )
: NewRowMap_(new_row_map),
NewColMap_(0)
{}
///
/** Constructs "reindexed" Matrix
*/
NewTypeRef operator()( OriginalTypeRef orig );
private:
template<typename int_type>
NewTypeRef Toperator( OriginalTypeRef orig );
};
} //namespace EpetraExt
#endif //EpetraExt_CRSMATRIX_REINDEX_H
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