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- /* Endian macros for string.h functions
- Copyright (C) 1992-2021 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_ENDIAN_H
- #define _BITS_ENDIAN_H 1
- /* Definitions for byte order, according to significance of bytes,
- from low addresses to high addresses. The value is what you get by
- putting '4' in the most significant byte, '3' in the second most
- significant byte, '2' in the second least significant byte, and '1'
- in the least significant byte, and then writing down one digit for
- each byte, starting with the byte at the lowest address at the left,
- and proceeding to the byte with the highest address at the right. */
- #define __LITTLE_ENDIAN 1234
- #define __BIG_ENDIAN 4321
- #define __PDP_ENDIAN 3412
- /* This file defines `__BYTE_ORDER' for the particular machine. */
- #include <bits/endianness.h>
- /* Some machines may need to use a different endianness for floating point
- values. */
- #ifndef __FLOAT_WORD_ORDER
- # define __FLOAT_WORD_ORDER __BYTE_ORDER
- #endif
- #if __BYTE_ORDER == __LITTLE_ENDIAN
- # define __LONG_LONG_PAIR(HI, LO) LO, HI
- #elif __BYTE_ORDER == __BIG_ENDIAN
- # define __LONG_LONG_PAIR(HI, LO) HI, LO
- #endif
- #endif /* bits/endian.h */
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