From f8887d0a5feda97244613135822b0439addc2b1f Mon Sep 17 00:00:00 2001 From: "H.J. Lu" Date: Fri, 6 Apr 2012 15:13:09 -0700 Subject: Add byteswap-16.h for __bswap_16 --- bits/byteswap-16.h | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 bits/byteswap-16.h (limited to 'bits/byteswap-16.h') diff --git a/bits/byteswap-16.h b/bits/byteswap-16.h new file mode 100644 index 0000000000..078dd0e17a --- /dev/null +++ b/bits/byteswap-16.h @@ -0,0 +1,33 @@ +/* Macros to swap the order of bytes in 16-bit integer values. + Copyright (C) 2012 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 + . */ + +#ifndef _BITS_BYTESWAP_H +# error "Never use directly; include instead." +#endif + +#ifdef __GNUC__ +# define __bswap_16(x) \ + (__extension__ \ + ({ unsigned short int __bsx = (x); __bswap_constant_16 (__bsx); })) +#else +static __inline unsigned short int +__bswap_16 (unsigned short int __bsx) +{ + return __bswap_constant_16 (__bsx); +} +#endif -- cgit v1.2.3