EpetraExt_Dirichlet_CrsMatrix.h

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// 
//     EpetraExt: Epetra Extended - Linear Algebra Services Package
//                 Copyright (2001) Sandia Corporation
// 
// Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
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#ifndef EpetraExt_CRSMATRIX_DIRICHLET_H
#define EpetraExt_CRSMATRIX_DIRICHLET_H

#include <EpetraExt_Transform.h>

#include <Epetra_CrsMatrix.h>
#include <Epetra_IntVector.h>

#include <set>

namespace EpetraExt {


class CrsMatrix_Dirichlet : public InPlaceTransform<Epetra_CrsMatrix>
{
 public:


  ~CrsMatrix_Dirichlet();


  CrsMatrix_Dirichlet( const Epetra_IntVector & Locations, 
                       bool Symmetric = false )
  : locations_(Locations),
    symmetric_(Symmetric)
  {}


  bool fwd();


  bool rvs();

 private:

  const Epetra_IntVector locations_;
  std::set<int> colSet_;

  const bool symmetric_;
};

} //namespace EpetraExt

#endif //EpetraExt_CRSMATRIX_DIRICHLET_H

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