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Diffstat (limited to '.ccls-cache/@@home@niliara@configs/@usr@include@bits@byteswap.h')
-rwxr-xr-x | .ccls-cache/@@home@niliara@configs/@usr@include@bits@byteswap.h | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/.ccls-cache/@@home@niliara@configs/@usr@include@bits@byteswap.h b/.ccls-cache/@@home@niliara@configs/@usr@include@bits@byteswap.h new file mode 100755 index 0000000..d15c940 --- /dev/null +++ b/.ccls-cache/@@home@niliara@configs/@usr@include@bits@byteswap.h @@ -0,0 +1,79 @@ +/* Macros and inline functions to swap the order of bytes in integer values. + Copyright (C) 1997-2024 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 + <https://www.gnu.org/licenses/>. */ + +#if !defined _BYTESWAP_H && !defined _NETINET_IN_H && !defined _ENDIAN_H +# error "Never use <bits/byteswap.h> directly; include <byteswap.h> instead." +#endif + +#ifndef _BITS_BYTESWAP_H +#define _BITS_BYTESWAP_H 1 + +#include <features.h> +#include <bits/types.h> + +/* Swap bytes in 16-bit value. */ +#define __bswap_constant_16(x) \ + ((__uint16_t) ((((x) >> 8) & 0xff) | (((x) & 0xff) << 8))) + +static __inline __uint16_t +__bswap_16 (__uint16_t __bsx) +{ +#if __GNUC_PREREQ (4, 8) + return __builtin_bswap16 (__bsx); +#else + return __bswap_constant_16 (__bsx); +#endif +} + +/* Swap bytes in 32-bit value. */ +#define __bswap_constant_32(x) \ + ((((x) & 0xff000000u) >> 24) | (((x) & 0x00ff0000u) >> 8) \ + | (((x) & 0x0000ff00u) << 8) | (((x) & 0x000000ffu) << 24)) + +static __inline __uint32_t +__bswap_32 (__uint32_t __bsx) +{ +#if __GNUC_PREREQ (4, 3) + return __builtin_bswap32 (__bsx); +#else + return __bswap_constant_32 (__bsx); +#endif +} + +/* Swap bytes in 64-bit value. */ +#define __bswap_constant_64(x) \ + ((((x) & 0xff00000000000000ull) >> 56) \ + | (((x) & 0x00ff000000000000ull) >> 40) \ + | (((x) & 0x0000ff0000000000ull) >> 24) \ + | (((x) & 0x000000ff00000000ull) >> 8) \ + | (((x) & 0x00000000ff000000ull) << 8) \ + | (((x) & 0x0000000000ff0000ull) << 24) \ + | (((x) & 0x000000000000ff00ull) << 40) \ + | (((x) & 0x00000000000000ffull) << 56)) + +__extension__ static __inline __uint64_t +__bswap_64 (__uint64_t __bsx) +{ +#if __GNUC_PREREQ (4, 3) + return __builtin_bswap64 (__bsx); +#else + return __bswap_constant_64 (__bsx); +#endif +} + +#endif /* _BITS_BYTESWAP_H */ |