/usr/include/liggghts/atom_masks.h is in libliggghts-dev 3.7.0+repack1-1.
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 is the
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╚══════╝╚═╝ ╚═════╝ ╚═════╝ ╚═════╝ ╚═╝ ╚═╝ ╚═╝ ╚══════╝®
DEM simulation engine, released by
DCS Computing Gmbh, Linz, Austria
http://www.dcs-computing.com, office@dcs-computing.com
LIGGGHTS® is part of CFDEM®project:
http://www.liggghts.com | http://www.cfdem.com
Core developer and main author:
Christoph Kloss, christoph.kloss@dcs-computing.com
LIGGGHTS® is open-source, distributed under the terms of the GNU Public
License, version 2 or later. It 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. You should have
received a copy of the GNU General Public License along with LIGGGHTS®.
If not, see http://www.gnu.org/licenses . See also top-level README
and LICENSE files.
LIGGGHTS® and CFDEM® are registered trade marks of DCS Computing GmbH,
the producer of the LIGGGHTS® software and the CFDEM®coupling software
See http://www.cfdem.com/terms-trademark-policy for details.
-------------------------------------------------------------------------
Contributing author and copyright for this file:
This file is from LAMMPS
LAMMPS - Large-scale Atomic/Molecular Massively Parallel Simulator
http://lammps.sandia.gov, Sandia National Laboratories
Steve Plimpton, sjplimp@sandia.gov
Copyright (2003) Sandia Corporation. Under the terms of Contract
DE-AC04-94AL85000 with Sandia Corporation, the U.S. Government retains
certain rights in this software. This software is distributed under
the GNU General Public License.
------------------------------------------------------------------------- */
#ifndef LMP_ATOM_MASK_H
#define LMP_ATOM_MASK_H
// per-atom data masks
#define EMPTY_MASK 0x00000000
#define ALL_MASK 0xffffffff
#define SAMETAG_MASK 0x01000000
#define EXTENDED_MASK 0x80000000
// standard
#define X_MASK 0x00000001
#define V_MASK 0x00000002
#define F_MASK 0x00000004
#define TAG_MASK 0x00000008
#define TYPE_MASK 0x00000010
#define MASK_MASK 0x00000020
#define IMAGE_MASK 0x00000040
#define Q_MASK 0x00000080
#define MOLECULE_MASK 0x00000100
#define RMASS_MASK 0x00000200
#define BOND_MASK 0x00000400
#define ANGLE_MASK 0x00000800
#define DIHEDRAL_MASK 0x00001000
#define IMPROPER_MASK 0x00002000
#define SPECIAL_MASK 0x00004000
#define MAP_MASK 0x00008000
// granular
#define RADIUS_MASK 0x00010000
#define DENSITY_MASK 0x00020000
#define OMEGA_MASK 0x00040000
#define TORQUE_MASK 0x00080000
#define ANGMOM_MASK 0x00100000
#define GRANULAR_MASK 0x001f0000
// peridynamics
#define VFRAC_MASK 0x00200000
#define S0_MASK 0x00400000
#define X0_MASK 0x00800000
#define PERI_MASK 0x00e00000
#define ELLIPSOID_MASK 0x00000001
#define LINE_MASK 0x00000002
#define TRI_MASK 0x00000004
// electron
#define SPIN_MASK 0x00000010
#define ERADIUS_MASK 0x00000020
#define ERVEL_MASK 0x00000040
#define ERFORCE_MASK 0x00000080
#define ERVELFORCE_MASK 0x00000100
#define CS_MASK 0x00000200
#define CSFORCE_MASK 0x00000400
#define VFORCE_MASK 0x00000800
#define ELECTRON_MASK 0x00000f00
// SPH
#define ETAG_MASK 0x00001000
#define RHO_MASK 0x00002000
#define DRHO_MASK 0x00004000
#define E_MASK 0x00008000
#define DE_MASK 0x00010000
#define VEST_MASK 0x00020000
#define CV_MASK 0x00040000
#endif
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