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glibc/bits/byteswap-16.h
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/* Macros to swap the order of bytes in 16-bit integer values. | |
Copyright (C) 2012-2016 Free Software Foundation, Inc. | |
This file is part of the GNU C Library. | |
The GNU C 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. | |
The GNU C 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 the GNU C Library; if not, see | |
<http://www.gnu.org/licenses/>. */ | |
#ifndef _BITS_BYTESWAP_H | |
# error "Never use <bits/byteswap-16.h> directly; include <byteswap.h> instead." | |
#endif | |
#ifdef __GNUC__ | |
# define __bswap_16(x) \ | |
(__extension__ \ | |
({ unsigned short int __bsx = (unsigned short int) (x); \ | |
__bswap_constant_16 (__bsx); })) | |
#else | |
static __inline unsigned short int | |
__bswap_16 (unsigned short int __bsx) | |
{ | |
return __bswap_constant_16 (__bsx); | |
} | |
#endif |