/usr/include/libnova/airmass.h is in libnova-dev 0.16-2.
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 38 39 40 41 42 43 44 45 | /*
* 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 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 General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* Copyright (C) 2000 - 2005 Petr Kubanek
* Copyright (C) 2011 Petr Kubanek, Institute of Physics <kubanek@fzu.cz>
*/
#ifndef _LN_AIRMASS_H
#define _LN_AIRMASS_H
#include <libnova/ln_types.h>
#ifdef __cplusplus
extern "C" {
#endif
/*! \fn double ln_get_airmass(double alt, double airmass_scale);
* \brief Calculate air mass in given altitude.
* \ingroup airmass
*/
double LIBNOVA_EXPORT ln_get_airmass(double alt, double airmass_scale);
/*! \fn double ln_get_alt_from_airmass(double X, double airmass_scale)
* \brief Calculate altitude for given air mass.
* \ingroup airmass
*/
double LIBNOVA_EXPORT ln_get_alt_from_airmass(double X, double airmass_scale);
#ifdef __cplusplus
};
#endif
#endif
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