/usr/include/dolfin/adaptivity/GoalFunctional.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/>.
//
// First added: 2010-09-16
// Last changed: 2012-11-14
#ifndef __GOAL_FUNCTIONAL_H
#define __GOAL_FUNCTIONAL_H
#include <memory>
#include <dolfin/fem/Form.h>
#include "ErrorControl.h"
namespace dolfin
{
/// A _GoalFunctional_ is a _Form_ of rank 0 with an associated
/// _ErrorControl_.
class GoalFunctional : public Form
{
public:
// FIXME: The rank argument is unnecessary, a GoalFunction should
// always have rank 0. The argument should be removed for that
// reason.
/// Create _GoalFunctional_
///
/// *Arguments*
/// rank (int)
/// the rank of the functional (should be 0)
/// num_coefficients (int)
/// the number of coefficients in functional
GoalFunctional(std::size_t rank, std::size_t num_coefficients);
/// Update error control instance with given forms
///
/// *Arguments*
/// a (_Form_)
/// a bilinear form
/// L (_Form_)
/// a linear form
virtual void update_ec(const Form& a, const Form& L) = 0;
// Pointer to _ErrorControl_ instance
std::shared_ptr<ErrorControl> _ec;
};
}
#endif
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