timersub.h File Reference

#include <sys/time.h>

Go to the source code of this file.

Macros
#define	timersub(a, b, result)

Macro Definition Documentation

#define timersub	(		a,
			b,
			result
	)

Value:

do {                                                                          \
    (result)->tv_sec = (a)->tv_sec - (b)->tv_sec;                             \
    (result)->tv_usec = (a)->tv_usec - (b)->tv_usec;                          \
    if ((result)->tv_usec < 0) {                                              \
      --(result)->tv_sec;                                                     \
      (result)->tv_usec += 1000000;                                           \
    }                                                                         \
  } while (0)

Definition at line 22 of file timersub.h.