ESPResSo
Extensible Simulation Package for Research on Soft Matter Systems
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link_cell.hpp
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1/*
2 * Copyright (C) 2010-2022 The ESPResSo project
3 *
4 * This file is part of ESPResSo.
5 *
6 * ESPResSo is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
10 *
11 * ESPResSo is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
18 */
19
20#pragma once
21
22#include <iterator>
23
24namespace Algorithm {
25
26/**
27 * @brief Iterates over all particles in the cell range,
28 * and over all pairs within the cells and with
29 * their neighbors.
30 */
31template <typename CellIterator, typename PairKernel>
32void link_cell(CellIterator first, CellIterator last,
33 PairKernel &&pair_kernel) {
34 for (auto cell = first; cell != last; ++cell) {
35 auto &local_particles = cell->particles();
36 for (auto it = local_particles.begin(); it != local_particles.end(); ++it) {
37 auto &p1 = *it;
38
39 /* Pairs in this cell */
40 for (auto jt = std::next(it); jt != local_particles.end(); ++jt) {
41 pair_kernel(p1, *jt);
42 }
43
44 /* Pairs with neighbors */
45 for (auto &neighbor : cell->neighbors().red()) {
46 for (auto &p2 : neighbor->particles()) {
47 pair_kernel(p1, p2);
48 }
49 }
50 }
51 }
52}
53
54} // namespace Algorithm
void link_cell(CellIterator first, CellIterator last, PairKernel &&pair_kernel)
Iterates over all particles in the cell range, and over all pairs within the cells and with their nei...
Definition link_cell.hpp:32