/usr/include/libdivecomputer/units.h is in libdivecomputer-dev 0.4.2-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 | /*
* libdivecomputer
*
* Copyright (C) 2008 Jef Driesen
*
* This library 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 2.1 of the License, or (at your option) any later version.
*
* This library 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 this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301 USA
*/
#ifndef UNITS_H
#define UNITS_H
#define POUND 0.45359237
#define FEET 0.3048
#define INCH 0.0254
#define GRAVITY 9.80665
#define ATM 101325.0
#define BAR 100000.0
#define FSW (ATM / 33.0)
#define MSW (BAR / 10.0)
#define PSI ((POUND * GRAVITY) / (INCH * INCH))
#endif /* UNITS_H */
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