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LibC: properly populate endian.h

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Ørjan Malde 2019-11-16 15:38:56 +01:00 • committed by Andreas Kling
parent ba97548686
commit faff1361c3
1 changed files with 42 additions and 3 deletions
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45
Libraries/LibC/endian.h
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@ -4,8 +4,47 @@
__BEGIN_DECLS
#define LITTLE_ENDIAN 1234
#define BIG_ENDIAN 4321
#define BYTE_ORDER LITTLE_ENDIAN
#define __LITTLE_ENDIAN 1234
#define __BIG_ENDIAN 4321
#define __PDP_ENDIAN 3412
#if defined(__GNUC__) && defined(__BYTE_ORDER__)
#define __BYTE_ORDER __BYTE_ORDER__
#else
#include <bits/endian.h>
#endif
#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
#include <stdint.h>
#define LITTLE_ENDIAN __LITTLE_ENDIAN
#define BIG_ENDIAN __BIG_ENDIAN
#define PDP_ENDIAN __PDP_ENDIAN
#define BYTE_ORDER __BYTE_ORDER
#if __BYTE_ORDER == __LITTLE_ENDIAN
#define htole16(x) (uint16_t)(x)
#define le16toh(x) (uint16_t)(x)
#define letoh16(x) (uint16_t)(x)
#define htole32(x) (uint32_t)(x)
#define le32toh(x) (uint32_t)(x)
#define letoh32(x) (uint32_t)(x)
#define htole64(x) (uint64_t)(x)
#define le64toh(x) (uint64_t)(x)
#define letoh64(x) (uint64_t)(x)
#else
#define htobe16(x) (uint16_t)(x)
#define be16toh(x) (uint16_t)(x)
#define betoh16(x) (uint16_t)(x)
#define htobe32(x) (uint32_t)(x)
#define be32toh(x) (uint32_t)(x)
#define betoh32(x) (uint32_t)(x)
#define htobe64(x) (uint64_t)(x)
#define be64toh(x) (uint64_t)(x)
#define betoh64(x) (uint64_t)(x)
#endif
#endif
__END_DECLS