timersub.h File Reference

#include <sys/time.h>

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Macros
#define	timersub(a, b, result)

Macro Definition Documentation

timersub

#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 24 of file timersub.h.