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internal.hh
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Tue, May 7, 13:32

internal.hh
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/*
* SPDX-License-Indentifier: AGPL-3.0-or-later
*
* Copyright (©) 2016-2023 EPFL (École Polytechnique Fédérale de Lausanne),
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
* Copyright (©) 2020-2023 Lucas Frérot
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published
* by the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
/* -------------------------------------------------------------------------- */
#ifndef INTERNAL_HH
#define INTERNAL_HH
/* -------------------------------------------------------------------------- */
#include "grid.hh"
#include <memory>
/* -------------------------------------------------------------------------- */
namespace tamaas {
template <typename T, UInt dim>
struct Internal {
/// Stored field
std::shared_ptr<Grid<T, dim>> field;
/// Initialize previous field
void initialize() {
previous = std::make_shared<Grid<T, dim>>(field->sizes(),
field->getNbComponents());
update();
}
/// Update the field previous state
void update() { *previous = *field; }
/// Reset the current field
void reset() { *field = *previous; }
/// Assign the field pointer
void operator=(decltype(field)&& field) { this->field = std::move(field); }
/// Dereference the field pointer
typename decltype(field)::element_type& operator*() { return *field; }
/// Dereference the field pointer (const version)
const typename decltype(field)::element_type& operator*() const {
return *field;
}
/// Upcast to GridBase pointer
operator std::shared_ptr<GridBase<T>>() { return field; }
public:
decltype(field) previous;
};
} // namespace tamaas
#endif // INTERNAL_HH

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