[include] fix comment for rt_container_of

2022-05-24 00:16:27 +08:00 · 2022-05-24 00:16:27 +08:00 · a638a879fb
parent 42a136288d
commit a638a879fb
1 changed files with 2 additions and 2 deletions
--- a/include/rtservice.h
+++ b/include/rtservice.h
@ -27,8 +27,8 @@ extern "C" {
 /**@{*/

 /**
- * rt_container_of - return the member address of ptr, if the type of ptr is the
- * struct type.
+ * rt_container_of - return the start address of struct type, while ptr is the
+ * member of struct type.
 */
 #define rt_container_of(ptr, type, member) \
    ((type *)((char *)(ptr) - (unsigned long)(&((type *)0)->member)))