- (r)->tv_sec = (a)->tv_sec + (b)->tv_sec;\
- (r)->tv_usec = (a)->tv_usec + (b)->tv_usec;\
- if((r)->tv_usec >= 1000000)\
- (r)->tv_sec++, (r)->tv_usec -= 1000000;\
-} while (0)
+ (r)->tv_sec = (a)->tv_sec + (b)->tv_sec;\
+ (r)->tv_usec = (a)->tv_usec + (b)->tv_usec;\
+ if((r)->tv_usec >= 1000000)\
+ (r)->tv_sec++, (r)->tv_usec -= 1000000;\
+ } while (0)