-
-#ifndef timersub
-#define timersub(a, b, r) do {\
- (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)
-#endif
-
-#endif /* __DROPIN_H__ */