diff options
Diffstat (limited to 'include/internal/bitops.h')
| -rw-r--r-- | include/internal/bitops.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/include/internal/bitops.h b/include/internal/bitops.h new file mode 100644 index 0000000..b1bd848 --- /dev/null +++ b/include/internal/bitops.h @@ -0,0 +1,32 @@ +/* + * WARNING: Do *NOT* ever include this file, only for internal use! + */ +#ifndef _NFCT_BITOPS_H_ +#define _NFCT_BITOPS_H_ + +static inline void set_bit(int nr, u_int32_t *addr) +{ + addr[nr >> 5] |= (1UL << (nr & 31)); +} + +static inline void unset_bit(int nr, u_int32_t *addr) +{ + addr[nr >> 5] &= ~(1UL << (nr & 31)); +} + +static inline void set_bit_u16(int nr, u_int16_t *addr) +{ + addr[nr >> 4] |= (1UL << (nr & 15)); +} + +static inline void unset_bit_u16(int nr, u_int16_t *addr) +{ + addr[nr >> 4] &= ~(1UL << (nr & 15)); +} + +static inline int test_bit(int nr, const u_int32_t *addr) +{ + return ((1UL << (nr & 31)) & (addr[nr >> 5])) != 0; +} + +#endif |