/usr/include/libmesh/hp_singular.h is in libmesh-dev 0.7.1-2ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// The libMesh Finite Element Library.
// Copyright (C) 2002-2008 Benjamin S. Kirk, John W. Peterson, Roy H. Stogner
// This library 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 2.1 of the License, or (at your option) any later version.
// This library 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 for more details.
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#ifndef __hp_singular_h__
#define __hp_singular_h__
// C++ includes
#include <list>
// Local Includes
#include "libmesh_common.h"
#include "point.h"
#ifdef LIBMESH_ENABLE_AMR
namespace libMesh
{
// Forward Declarations
class System;
/**
* This class uses a user-provided list of singularity locations
* to choose between h refining and p elevation.
* Currently we assume that a set of elements has already been flagged
* for h refinement - any elements which do not contain a
* user-provided singular point are instead flagged for p refinement.
*
* @author Roy H. Stogner, 2006.
*/
class HPSingularity
{
public:
/**
* Constructor.
*/
HPSingularity()
{
libmesh_experimental();
}
/**
* Destructor.
*/
virtual ~HPSingularity () {}
/**
* This pure virtual function must be redefined
* in derived classes to take a mesh flagged for h
* refinement and potentially change the desired
* refinement type.
*/
virtual void select_refinement (System& system);
/**
* This list, to be filled by the user, should include
* all singular points in the solution.
*/
std::list<Point> singular_points;
};
} // namespace libMesh
#endif // #ifdef LIBMESH_ENABLE_AMR
#endif
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