/usr/include/roaraudio/units.h is in libroar-dev 1.0~beta11-10.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/*
* Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2010-2014
*
* This file is part of RoarAudio,
* a cross-platform sound system for both, home and professional use.
* See README for details.
*
* This file is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* as published by the Free Software Foundation.
*
* RoarAudio 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 software; see the file COPYING. If not, write to
* the Free Software Foundation, 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
* NOTE: Even though this file is LGPLed it (may) include GPLed files
* so the license of this file is/may therefore downgraded to GPL.
* See HACKING for details.
*/
#ifndef _ROARAUDIO_UNITS_H_
#define _ROARAUDIO_UNITS_H_
/* suffix: */
#define _MICRO (1/1000000)
#define _MILI (1/1000)
#define _ONE 1
#define _KILO 1000
#define _MEGA ((int_least32_t)_KILO*(int_least32_t)_KILO)
#define _GIGA ((int_least32_t)_KILO*_MEGA)
#define _TERA ((int_least32_t)_KILO*_GIGA)
/* Time: */
#ifndef _SEC
#if defined(_UNITS_T_BASE_MSEC)
#define _SEC_TYPE int_least32_t
#define _SEC (_SEC_TYPE)1000
#elif defined(_UNITS_T_BASE_USEC)
#define _SEC_TYPE int_least32_t
#define _SEC (_SEC_TYPE)1000000
//#elif defined(_UNITS_T_BASE_SEC)
#else
#define _SEC 1
#define _SEC_TYPE int
#endif
#endif
#ifndef _SEC_TYPE
#define _SEC_TYPE int_least32_t
#endif
#define _MIN ((_SEC_TYPE)60*_SEC)
#define _HOUR ((_SEC_TYPE)60*_MIN)
#define _MSEC (_SEC*_MILI)
#define _USEC (_SEC*_MICRO)
/* distance */
#ifndef _METER
#if defined(_UNITS_D_BASE_MMETER)
#define _METER_TYPE int
#define _METER 1000
#elif defined(_UNITS_D_BASE_UMETER)
#define _METER_TYPE int_least32_t
#define _METER (_METER_TYPE)1000000
//#elif defined(_UNITS_D_BASE_METER)
#else
#define _METER_TYPE int
#define _METER 1
#endif
#endif
#ifndef _METER_TYPE
#define _METER_TYPE int_least32_t
#endif
#define _AE ((int_least64_t)149597870691LL *_METER)
#define _LJ (9460730472580800LL *_METER)
#define _PC (30856804413117847LL*_METER) /* TODO: FIXME: get a more corret value */
/* speed */
#define _MPS ((double)_METER/_SEC)
#define _KMPH (_KILO*_METER/_HOUR)
#define _SPEED_OF_SOUND_AIR (343. *_MPS)
#define _SPEED_OF_SOUND_WATER (1407.*_MPS)
#define _SPEED_OF_SOUND _SPEED_OF_SOUND_AIR
#define _SPEED_OF_LIGHT_VACUUM (299792458LL*_MPS)
#define _SPEED_OF_LIGHT _SPEED_OF_LIGHT_VACUUM
/* Bits -> Bytes: */
#define _BIT2BYTE(x) (((int)((x)/8)) + ((x) % 8 ? 1 : 0))
#define _BYTE2BIT(x) ((x)*8)
#define _8BIT _BIT2BYTE(8)
#define _16BIT _BIT2BYTE(16)
#define _24BIT _BIT2BYTE(24)
#define _32BIT _BIT2BYTE(32)
#define _64BIT _BIT2BYTE(64)
#endif
//ll
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