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| author | Renato Botelho <renato@netgate.com> | 2017-02-09 11:26:48 -0200 |
|---|---|---|
| committer | Renato Botelho <renato@netgate.com> | 2017-02-09 11:26:48 -0200 |
| commit | 4a05f5440acda223e6a0ec5157bc32ecc0f09ff9 (patch) | |
| tree | 4c2ece480e5d4155ed35bec62996de40eb179f18 /lib/libnetbsd/sys | |
| parent | 681a482d8fc4bfc14a24f7a9d75cca6337f2a520 (diff) | |
| parent | a1e52233c91fd46e666297270ab655f1abff8535 (diff) | |
| download | FreeBSD-src-4a05f5440acda223e6a0ec5157bc32ecc0f09ff9.zip FreeBSD-src-4a05f5440acda223e6a0ec5157bc32ecc0f09ff9.tar.gz | |
Merge remote-tracking branch 'origin/stable/10' into devel
Diffstat (limited to 'lib/libnetbsd/sys')
| -rw-r--r-- | lib/libnetbsd/sys/cdefs.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/lib/libnetbsd/sys/cdefs.h b/lib/libnetbsd/sys/cdefs.h index 051959f..06e46fd 100644 --- a/lib/libnetbsd/sys/cdefs.h +++ b/lib/libnetbsd/sys/cdefs.h @@ -69,4 +69,13 @@ */ #define __arraycount(__x) (sizeof(__x) / sizeof(__x[0])) +/* __BIT(n): nth bit, where __BIT(0) == 0x1. */ +#define __BIT(__n) \ + (((uintmax_t)(__n) >= NBBY * sizeof(uintmax_t)) ? 0 : \ + ((uintmax_t)1 << (uintmax_t)((__n) & (NBBY * sizeof(uintmax_t) - 1)))) + +/* __BITS(m, n): bits m through n, m < n. */ +#define __BITS(__m, __n) \ + ((__BIT(MAX((__m), (__n)) + 1) - 1) ^ (__BIT(MIN((__m), (__n))) - 1)) + #endif /* _LIBNETBSD_SYS_CDEFS_H_ */ |
