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| -rw-r--r-- | src/systime.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/src/systime.h b/src/systime.h index 44c1f7d4de1..2675dee799d 100644 --- a/src/systime.h +++ b/src/systime.h @@ -147,3 +147,22 @@ extern long timezone; (EMACS_SET_SECS (time, secs), EMACS_SET_USECS (time, usecs)) extern int set_file_times (); + +/* Compare times T1 and T2. Value is 0 if T1 and T2 are the same. + Value is < 0 if T1 is less than T2. Value is > 0 otherwise. */ + +#define EMACS_TIME_CMP(T1, T2) \ + (EMACS_SECS (T1) - EMACS_SECS (T2) \ + + (EMACS_SECS (T1) == EMACS_SECS (T2) \ + ? EMACS_USECS (T1) - EMACS_USECS (T2) \ + : 0)) + +/* Compare times T1 and T2 for equality, inequality etc. */ + +#define EMACS_TIME_EQ(T1,T2) (EMACS_TIME_CMP (T1, T2) == 0) +#define EMACS_TIME_NE(T1,T2) (EMACS_TIME_CMP (T1, T2) != 0) +#define EMACS_TIME_GT(T1,T2) (EMACS_TIME_CMP (T1, T2) > 0) +#define EMACS_TIME_GE(T1,T2) (EMACS_TIME_CMP (T1, T2) >= 0) +#define EMACS_TIME_LT(T1,T2) (EMACS_TIME_CMP (T1, T2) < 0) +#define EMACS_TIME_LE(T1,T2) (EMACS_TIME_CMP (T1, T2) <= 0) + |