diff options
Diffstat (limited to 'string')
| -rw-r--r-- | string/Makefile | 3 | ||||
| -rw-r--r-- | string/bits/endian.h | 49 | ||||
| -rw-r--r-- | string/endian.h | 39 |
3 files changed, 57 insertions, 34 deletions
diff --git a/string/Makefile b/string/Makefile index 52fe28207c..f01b34509a 100644 --- a/string/Makefile +++ b/string/Makefile @@ -25,7 +25,8 @@ include ../Makeconfig headers := string.h bits/string_fortified.h \ strings.h bits/strings_fortified.h \ byteswap.h bits/byteswap.h \ - endian.h bits/endian.h bits/uintn-identity.h \ + endian.h bits/endian.h bits/endianness.h \ + bits/uintn-identity.h \ memory.h argz.h envz.h routines := strcat strchr strcmp strcoll strcpy strcspn \ diff --git a/string/bits/endian.h b/string/bits/endian.h new file mode 100644 index 0000000000..2217990cde --- /dev/null +++ b/string/bits/endian.h @@ -0,0 +1,49 @@ +/* Endian macros for string.h functions + Copyright (C) 1992-2019 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 */ diff --git a/string/endian.h b/string/endian.h index 17e4e893fb..0eb534e434 100644 --- a/string/endian.h +++ b/string/endian.h @@ -20,42 +20,15 @@ #include <features.h> -/* 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. */ +/* Get the definitions of __*_ENDIAN, __BYTE_ORDER, and __FLOAT_WORD_ORDER. */ #include <bits/endian.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 - -#ifdef __USE_MISC -# define LITTLE_ENDIAN __LITTLE_ENDIAN -# define BIG_ENDIAN __BIG_ENDIAN -# define PDP_ENDIAN __PDP_ENDIAN -# define BYTE_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 - +#define LITTLE_ENDIAN __LITTLE_ENDIAN +#define BIG_ENDIAN __BIG_ENDIAN +#define PDP_ENDIAN __PDP_ENDIAN +#define BYTE_ORDER __BYTE_ORDER -#if defined __USE_MISC && !defined __ASSEMBLER__ +#ifndef __ASSEMBLER__ /* Conversion interfaces. */ # include <bits/byteswap.h> # include <bits/uintn-identity.h> |