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/**
* @file particle.h
* @brief reb_particle structure and main particle routines.
* @author Hanno Rein <hanno@hanno-rein.de>
*
* @section LICENSE
* Copyright (c) 2011 Hanno Rein, Shangfei Liu
*
* This file is part of rebound.
*
* rebound is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* rebound 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with rebound. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef _PARTICLE_H
#define _PARTICLE_H
struct reb_simulation;
struct reb_particle;
struct reb_treecell;
/**
* @brief Returns the index of the rootbox for the current particles based on its position.
* @param r REBOUND simulation to be considered.
* @param pt reb_particle to be checked.
* @return Index of the rootbox.
*/
int reb_get_rootbox_for_particle(const struct reb_simulation* const r, struct reb_particle pt);
/**
* @brief Returns 1 if a testparticle of type 0 has a finite mass.
*/
int reb_particle_check_testparticles(struct reb_simulation* const r);
#endif // _PARTICLE_H