/usr/include/ola/util/Utils.h is in libola-dev 0.10.3.nojsmin-2+deb9u1.
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 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 | /*
* 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
*
* Utils.h
* Basic util helper functions.
* Copyright (C) 2013 Peter Newman
*/
#ifndef INCLUDE_OLA_UTIL_UTILS_H_
#define INCLUDE_OLA_UTIL_UTILS_H_
#include <stdint.h>
#include <limits>
namespace ola {
namespace utils {
/**
* @brief Convert a uint16_t to two uint8_t's
* @param[in] input the uint16_t to split
* @param[out] high the high byte
* @param[out] low the low byte
*/
inline void SplitUInt16(uint16_t input, uint8_t *high, uint8_t *low) {
*high = static_cast<uint8_t>((input >> std::numeric_limits<uint8_t>::digits) &
std::numeric_limits<uint8_t>::max());
*low = static_cast<uint8_t>(input & std::numeric_limits<uint8_t>::max());
}
/**
* @brief Convert two uint8_t's to a uint16_t
* @param high the high byte
* @param low the low byte
* @return the combined uint16_t
*/
inline uint16_t JoinUInt8(uint8_t high, uint8_t low) {
return static_cast<uint16_t>(
(static_cast<uint16_t>(high) << std::numeric_limits<uint8_t>::digits)
| low);
}
/**
* @brief Convert four uint8_t's to a uint32_t
* @param byte0 the highest byte
* @param byte1 the high middle byte
* @param byte2 the low middle byte
* @param byte3 the lowest byte
* @return the combined uint32_t
*/
inline uint32_t JoinUInt8(uint8_t byte0, uint8_t byte1, uint8_t byte2,
uint8_t byte3) {
return ((static_cast<uint32_t>(byte0) <<
(std::numeric_limits<uint8_t>::digits * 3))
| (static_cast<uint32_t>(byte1) <<
(std::numeric_limits<uint8_t>::digits * 2))
| (static_cast<uint32_t>(byte2) <<
(std::numeric_limits<uint8_t>::digits))
| byte3);
}
} // namespace utils
} // namespace ola
#endif // INCLUDE_OLA_UTIL_UTILS_H_
|