X-Git-Url: http://git.archive.openwrt.org/?p=project%2Fubox.git;a=blobdiff_plain;f=libblkid-tiny%2Fbitops.h;fp=libblkid-tiny%2Fbitops.h;h=0000000000000000000000000000000000000000;hp=5bf205794783e41236bcd71e174d8c700f77c842;hb=3a51a879250221c60736f19eb0ab4d0e94326342;hpb=1015c3779f37a17c6a2512bfc817e56d3042a237 diff --git a/libblkid-tiny/bitops.h b/libblkid-tiny/bitops.h deleted file mode 100644 index 5bf2057..0000000 --- a/libblkid-tiny/bitops.h +++ /dev/null @@ -1,84 +0,0 @@ -#ifndef BITOPS_H -#define BITOPS_H - -#include - -/* - * Bit map related macros. Usually provided by libc. - */ -#include - -#ifndef NBBY -# define NBBY CHAR_BIT -#endif - -#ifndef setbit -# define setbit(a,i) ((a)[(i)/NBBY] |= 1<<((i)%NBBY)) -# define clrbit(a,i) ((a)[(i)/NBBY] &= ~(1<<((i)%NBBY))) -# define isset(a,i) ((a)[(i)/NBBY] & (1<<((i)%NBBY))) -# define isclr(a,i) (((a)[(i)/NBBY] & (1<<((i)%NBBY))) == 0) -#endif - -/* - * Byte swab macros (based on linux/byteorder/swab.h) - */ -#define swab16(x) \ - ((uint16_t)( \ - (((uint16_t)(x) & (uint16_t)0x00ffU) << 8) | \ - (((uint16_t)(x) & (uint16_t)0xff00U) >> 8) )) - -#define swab32(x) \ - ((uint32_t)( \ - (((uint32_t)(x) & (uint32_t)0x000000ffUL) << 24) | \ - (((uint32_t)(x) & (uint32_t)0x0000ff00UL) << 8) | \ - (((uint32_t)(x) & (uint32_t)0x00ff0000UL) >> 8) | \ - (((uint32_t)(x) & (uint32_t)0xff000000UL) >> 24) )) - -#define swab64(x) \ - ((uint64_t)( \ - (uint64_t)(((uint64_t)(x) & (uint64_t)0x00000000000000ffULL) << 56) | \ - (uint64_t)(((uint64_t)(x) & (uint64_t)0x000000000000ff00ULL) << 40) | \ - (uint64_t)(((uint64_t)(x) & (uint64_t)0x0000000000ff0000ULL) << 24) | \ - (uint64_t)(((uint64_t)(x) & (uint64_t)0x00000000ff000000ULL) << 8) | \ - (uint64_t)(((uint64_t)(x) & (uint64_t)0x000000ff00000000ULL) >> 8) | \ - (uint64_t)(((uint64_t)(x) & (uint64_t)0x0000ff0000000000ULL) >> 24) | \ - (uint64_t)(((uint64_t)(x) & (uint64_t)0x00ff000000000000ULL) >> 40) | \ - (uint64_t)(((uint64_t)(x) & (uint64_t)0xff00000000000000ULL) >> 56) )) - - -#if __BYTE_ORDER == __BIG_ENDIAN - -#define cpu_to_le16(x) swab16(x) -#define cpu_to_le32(x) swab32(x) -#define cpu_to_le64(x) swab64(x) -#define cpu_to_be16(x) ((uint16_t)(x)) -#define cpu_to_be32(x) ((uint32_t)(x)) -#define cpu_to_be64(x) ((uint64_t)(x)) - -#define le16_to_cpu(x) swab16(x) -#define le32_to_cpu(x) swab32(x) -#define le64_to_cpu(x) swab64(x) -#define be16_to_cpu(x) ((uint16_t)(x)) -#define be32_to_cpu(x) ((uint32_t)(x)) -#define be64_to_cpu(x) ((uint64_t)(x)) - -#else /* !WORDS_BIGENDIAN */ - -#define cpu_to_le16(x) ((uint16_t)(x)) -#define cpu_to_le32(x) ((uint32_t)(x)) -#define cpu_to_le64(x) ((uint64_t)(x)) -#define cpu_to_be16(x) swab16(x) -#define cpu_to_be32(x) swab32(x) -#define cpu_to_be64(x) swab64(x) - -#define le16_to_cpu(x) ((uint16_t)(x)) -#define le32_to_cpu(x) ((uint32_t)(x)) -#define le64_to_cpu(x) ((uint64_t)(x)) -#define be16_to_cpu(x) swab16(x) -#define be32_to_cpu(x) swab32(x) -#define be64_to_cpu(x) swab64(x) - -#endif /* WORDS_BIGENDIAN */ - -#endif /* BITOPS_H */ -