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Clarify endianness defines.

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This commit is contained in:
Adrien Destugues 2019-08-27 17:44:57 +02:00
parent 26e0b0c8d6
commit 261430c5ae
1 changed files with 8 additions and 9 deletions
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17
headers/posix/endian.h
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@ -1,5 +1,5 @@
/*
* Copyright 2003-2012 Haiku, Inc. All rights reserved.
* Copyright 2003-2019 Haiku, Inc. All rights reserved.
* Distributed under the terms of the MIT License.
*/
#ifndef _ENDIAN_H_
@ -9,18 +9,17 @@
#include <config/HaikuConfig.h>
/* Defines architecture dependent endian constants.
* The constant reflects the byte order, "4" is the most
* significant byte, "1" the least significant one.
/* Defines architecture independent endian constants.
* The constant reflects the byte order, "4" is the most significant byte,
* "1" the least significant one.
*/
#define LITTLE_ENDIAN 1234
#define BIG_ENDIAN 4321
/* Define the machine BYTE_ORDER depending on platform endianness */
#if defined(__HAIKU_LITTLE_ENDIAN)
# define LITTLE_ENDIAN 1234
# define BIG_ENDIAN 4321
# define BYTE_ORDER LITTLE_ENDIAN
#elif defined(__HAIKU_BIG_ENDIAN)
# define BIG_ENDIAN 4321
# define LITTLE_ENDIAN 1234
# define BYTE_ORDER BIG_ENDIAN
#endif
@ -28,4 +27,4 @@
#define __LITTLE_ENDIAN LITTLE_ENDIAN
#define __BYTE_ORDER BYTE_ORDER
#endif /* _ENDIAN_H_ */
#endif /* _ENDIAN_H_ */