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Utils.h
1 /*
2  * This library is free software; you can redistribute it and/or
3  * modify it under the terms of the GNU Lesser General Public
4  * License as published by the Free Software Foundation; either
5  * version 2.1 of the License, or (at your option) any later version.
6  *
7  * This library is distributed in the hope that it will be useful,
8  * but WITHOUT ANY WARRANTY; without even the implied warranty of
9  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
10  * Lesser General Public License for more details.
11  *
12  * You should have received a copy of the GNU Lesser General Public
13  * License along with this library; if not, write to the Free Software
14  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
15  *
16  * Utils.h
17  * Basic util helper functions.
18  * Copyright (C) 2013 Peter Newman
19  */
20 
21 #ifndef INCLUDE_OLA_UTIL_UTILS_H_
22 #define INCLUDE_OLA_UTIL_UTILS_H_
23 
24 #include <stdint.h>
25 
26 #include <limits>
27 
28 namespace ola {
29 namespace utils {
30 
37 inline void SplitUInt16(uint16_t input, uint8_t *high, uint8_t *low) {
38  *high = (input >> std::numeric_limits<uint8_t>::digits) &
39  std::numeric_limits<uint8_t>::max();
40  *low = input & std::numeric_limits<uint8_t>::max();
41 }
42 
43 
50 inline uint16_t JoinUInt8(uint8_t high, uint8_t low) {
51  return ((static_cast<uint16_t>(high) << std::numeric_limits<uint8_t>::digits)
52  | low);
53 }
54 } // namespace utils
55 } // namespace ola
56 #endif // INCLUDE_OLA_UTIL_UTILS_H_