PETScOperator.h

// Copyright (C) 2005-2018 Anders Logg and Garth N. Wells
//
// This file is part of DOLFINx (https://www.fenicsproject.org)
//
// SPDX-License-Identifier:    LGPL-3.0-or-later
 
#pragma once
 
#include <array>
#include <petscmat.h>
#include <stdint.h>
 
namespace dolfinx::la
{
class PETScVector;
 
 
class PETScOperator
{
public:
  PETScOperator(Mat A, bool inc_ref_count);
 
  // Copy constructor (deleted)
  PETScOperator(const PETScOperator& A) = delete;
 
  PETScOperator(PETScOperator&& A);
 
  virtual ~PETScOperator();
 
  PETScOperator& operator=(const PETScOperator& A) = delete;
 
  PETScOperator& operator=(PETScOperator&& A);
 
  std::array<std::int64_t, 2> size() const;
 
  PETScVector create_vector(std::size_t dim) const;
 
  Mat mat() const;
 
protected:
  // PETSc Mat pointer
  Mat _matA;
};
} // namespace dolfinx::la