diff options
Diffstat (limited to 'lib/birdlib.h')
| -rw-r--r-- | lib/birdlib.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/birdlib.h b/lib/birdlib.h index 428b3209..7cd78032 100644 --- a/lib/birdlib.h +++ b/lib/birdlib.h @@ -56,6 +56,13 @@ static inline int u64_cmp(u64 i1, u64 i2) #define BIT32_CLR(b,p) ((b)[(p)/32] &= ~BIT32_VAL(p)) #define BIT32_ZERO(b,l) memset((b), 0, (l)/8) +/* The same, but counting bits from MSB */ +#define BIT32R_VAL(p) ((((u32) 1) << 31) >> ((p) % 32)) +#define BIT32R_TEST(b,p) ((b)[(p)/32] & BIT32R_VAL(p)) +#define BIT32R_SET(b,p) ((b)[(p)/32] |= BIT32R_VAL(p)) +#define BIT32R_CLR(b,p) ((b)[(p)/32] &= ~BIT32R_VAL(p)) +#define BIT32R_ZERO(b,l) memset((b), 0, (l)/8) + #ifndef NULL #define NULL ((void *) 0) #endif |