diff options
| author | Henrik Rydberg <rydberg@alnilam.(none)> | 2010-02-01 20:19:45 +0100 |
|---|---|---|
| committer | Henrik Rydberg <rydberg@alnilam.(none)> | 2010-02-01 20:44:42 +0100 |
| commit | a7eb5d7a955a2b90ebfbeb5177c3d01e5c287e30 (patch) | |
| tree | bc9777c1767c95f3c89056847fd6d4b26a8e0152 /src/common.h | |
| parent | 8dcaab4219c3827c0661917542a28b1276703d8b (diff) | |
common: add some more bit utilities
Diffstat (limited to 'src/common.h')
| -rw-r--r-- | src/common.h | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/src/common.h b/src/common.h index f9d9f77..b1c3273 100644 --- a/src/common.h +++ b/src/common.h | |||
| @@ -54,9 +54,11 @@ | |||
| 54 | 54 | ||
| 55 | #define SYSCALL(call) while (((call) == -1) && (errno == EINTR)) | 55 | #define SYSCALL(call) while (((call) == -1) && (errno == EINTR)) |
| 56 | 56 | ||
| 57 | #define GETBIT(m, x) ((m>>(x))&1U) | 57 | #define BITMASK(x) (1U << (x)) |
| 58 | #define SETBIT(m, x) (m|=(1U<<(x))) | 58 | #define BITONES(x) (BITMASK(x) - 1U) |
| 59 | #define CLEARBIT(m, x) (m&=~(1U<<(x))) | 59 | #define GETBIT(m, x) (((m) >> (x)) & 1U) |
| 60 | #define SETBIT(m, x) (m |= BITMASK(x)) | ||
| 61 | #define CLEARBIT(m, x) (m &= ~BITMASK(x)) | ||
| 60 | 62 | ||
| 61 | //////////////////////////////////////////////////////// | 63 | //////////////////////////////////////////////////////// |
| 62 | 64 | ||