* };
*/
#define BSWAP_16(val) \
- ((((uint16_t)val & 0x00ff) << 8) \
- | (((uint16_t)val & 0xff00) >> 8))
+ ((((uint16_t)(val) & 0x00ff) << 8) \
+ | (((uint16_t)(val) & 0xff00) >> 8))
/**
* BSWAP_32 - reverse bytes in a constant uint32_t value.
* };
*/
#define BSWAP_32(val) \
- ((((uint32_t)val & 0x000000ff) << 24) \
- | (((uint32_t)val & 0x0000ff00) << 8) \
- | (((uint32_t)val & 0x00ff0000) >> 8) \
- | (((uint32_t)val & 0xff000000) >> 24))
+ ((((uint32_t)(val) & 0x000000ff) << 24) \
+ | (((uint32_t)(val) & 0x0000ff00) << 8) \
+ | (((uint32_t)(val) & 0x00ff0000) >> 8) \
+ | (((uint32_t)(val) & 0xff000000) >> 24))
/**
* BSWAP_64 - reverse bytes in a constant uint64_t value.
* };
*/
#define BSWAP_64(val) \
- ((((uint64_t)val & 0x00000000000000ffULL) << 56) \
- | (((uint64_t)val & 0x000000000000ff00ULL) << 40) \
- | (((uint64_t)val & 0x0000000000ff0000ULL) << 24) \
- | (((uint64_t)val & 0x00000000ff000000ULL) << 8) \
- | (((uint64_t)val & 0x000000ff00000000ULL) >> 8) \
- | (((uint64_t)val & 0x0000ff0000000000ULL) >> 24) \
- | (((uint64_t)val & 0x00ff000000000000ULL) >> 40) \
- | (((uint64_t)val & 0xff00000000000000ULL) >> 56))
+ ((((uint64_t)(val) & 0x00000000000000ffULL) << 56) \
+ | (((uint64_t)(val) & 0x000000000000ff00ULL) << 40) \
+ | (((uint64_t)(val) & 0x0000000000ff0000ULL) << 24) \
+ | (((uint64_t)(val) & 0x00000000ff000000ULL) << 8) \
+ | (((uint64_t)(val) & 0x000000ff00000000ULL) >> 8) \
+ | (((uint64_t)(val) & 0x0000ff0000000000ULL) >> 24) \
+ | (((uint64_t)(val) & 0x00ff000000000000ULL) >> 40) \
+ | (((uint64_t)(val) & 0xff00000000000000ULL) >> 56))
#if HAVE_BYTESWAP_H
#include <byteswap.h>
}
#endif
+/* Needed for Glibc like endiness check */
+#define __LITTLE_ENDIAN 1234
+#define __BIG_ENDIAN 4321
+
/* Sanity check the defines. We don't handle weird endianness. */
#if !HAVE_LITTLE_ENDIAN && !HAVE_BIG_ENDIAN
#error "Unknown endian"
#elif HAVE_LITTLE_ENDIAN && HAVE_BIG_ENDIAN
#error "Can't compile for both big and little endian."
+#elif HAVE_LITTLE_ENDIAN
+#ifndef __BYTE_ORDER
+#define __BYTE_ORDER __LITTLE_ENDIAN
+#elif __BYTE_ORDER != __LITTLE_ENDIAN
+#error "__BYTE_ORDER already defined, but not equal to __LITTLE_ENDIAN"
+#endif
+#elif HAVE_BIG_ENDIAN
+#ifndef __BYTE_ORDER
+#define __BYTE_ORDER __BIG_ENDIAN
+#elif __BYTE_ORDER != __BIG_ENDIAN
+#error "__BYTE_ORDER already defined, but not equal to __BIG_ENDIAN"
#endif
+#endif
+
#ifdef __CHECKER__
/* sparse needs forcing to remove bitwise attribute from ccan/short_types */
*/
static inline beint64_t cpu_to_be64(uint64_t native)
{
- return ((ENDIAN_CAST beint64_t)BSWAP_64(native));
return CPU_TO_BE64(native);
}