diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/rtdef.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/rtdef.h b/include/rtdef.h index eb5f047f1b..1f0610cbcd 100644 --- a/include/rtdef.h +++ b/include/rtdef.h @@ -393,8 +393,9 @@ typedef int (*init_fn_t)(void); * Return true(1) or false(0). * RT_IS_ALIGN(128, 4) is judging whether 128 aligns with 4. * The result is 1, which means 128 aligns with 4. + * @note If the address is NULL, false(0) will be returned */ -#define RT_IS_ALIGN(addr, align) (!(addr & (align - 1))) +#define RT_IS_ALIGN(addr, align) ((!(addr & (align - 1))) && (addr != RT_NULL)) /** * @ingroup BasicDef |