/usr/include/dolfin/mesh/MeshData.h is in libdolfin-dev 2017.2.0.post0-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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//
// This file is part of DOLFIN.
//
// DOLFIN 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 3 of the License, or
// (at your option) any later version.
//
// DOLFIN 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 DOLFIN. If not, see <http://www.gnu.org/licenses/>.
//
// Modified by Niclas Jansson, 2008.
// Modified by Garth N. Wells, 2011.
//
// First added: 2008-05-19
// Last changed: 2011-09-15
#ifndef __MESH_DATA_H
#define __MESH_DATA_H
#include <map>
#include <memory>
#include <string>
#include <vector>
#include <dolfin/common/Variable.h>
namespace dolfin
{
class Mesh;
/// The class MeshData is a container for auxiliary mesh data,
/// represented either as arrays or maps. Each dataset is identified
/// by a unique user-specified string. Only std::size_t-valued data
/// are currently supported.
///
/// Auxiliary mesh data may be attached to a mesh by users as a
/// convenient way to store data associated with a mesh. It is also
/// used internally by DOLFIN to communicate data associated with
/// meshes. The following named mesh data are recognized by DOLFIN:
///
/// Facet orientation (used for assembly over interior facets)
///
/// * "facet_orientation" - _std:vector_ <std::size_t> of dimension D - 1
///
/// Sub meshes (used by the class SubMesh)
///
/// * "parent_vertex_indices" - _std::vector_ <std::size_t> of dimension 0
///
/// Note to developers: use underscore in names in place of spaces.
class MeshData : public Variable
{
public:
/// Constructor
MeshData();
/// Destructor
~MeshData();
/// Assignment operator
///
/// @param data (_MeshData_)
/// Another MeshData object.
const MeshData& operator= (const MeshData& data);
/// Clear all data
void clear();
//--- Query of data ---
/// Check is array exists
///
/// @param name (std::string)
/// The name of the array.
/// @param dim (std::size_t)
///
/// @return bool
/// True is array exists, false otherwise.
bool exists(std::string name, std::size_t dim) const;
//--- Creation of data ---
/// Create array (vector) with given name and size
///
/// @param name (std::string)
/// The name of the array.
/// @param dim (std::size_t)
/// Dimension.
///
/// @return std::vector<std::size_t>
/// The array.
std::vector<std::size_t>& create_array(std::string name, std::size_t dim);
//--- Retrieval of data ---
/// Return array with given name (returning zero if data is not
/// available)
///
/// @param name (std::string)
/// The name of the array.
/// @param dim (std::size_t)
/// Dimension.
/// @return std::vector<std::size_t>
/// The array.
std::vector<std::size_t>& array(std::string name, std::size_t dim);
/// Return array with given name (returning zero if data is not
/// available)
///
/// @param name (std::string)
/// The name of the array.
/// @param dim (std::size_t)
/// Dimension.
///
/// @return std::vector<std::size_t>
/// The array.
const std::vector<std::size_t>& array(std::string name,
std::size_t dim) const;
//--- Removal of data ---
/// Erase array with given name
///
/// @param name (std::string)
/// The name of the array.
/// @param dim (std::size_t)
/// Dimension.
void erase_array(const std::string name, std::size_t dim);
//--- Misc ---
/// Return informal string representation (pretty-print)
///
/// @param verbose (bool)
/// Flag to turn on additional output.
///
/// @return std::string
/// An informal representation.
std::string str(bool verbose) const;
/// Friends
friend class XMLMesh;
private:
// Check if name is deprecated
void check_deprecated(std::string name) const;
// A map from named mesh array data to vector for dim
std::vector<std::map<std::string, std::vector<std::size_t> > > _arrays;
// List of deprecated named data
std::vector<std::string> _deprecated_names;
};
}
#endif
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