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Added macros for days in month

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Nobuyoshi Nakada 2021-06-26 22:52:30 +09:00
parent 1fd8b6f2b9
commit bf789af28a
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1 changed files with 8 additions and 13 deletions
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21
time.c
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@ -783,6 +783,9 @@ static const int8_t leap_year_days_in_month[] = {
31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
};
#define days_in_month_of(leap) ((leap) ? leap_year_days_in_month : common_year_days_in_month)
#define days_in_month_in(y) days_in_month_of(leap_year_p(y))
#define M28(m) \
(m),(m),(m),(m),(m),(m),(m),(m),(m),(m), \
(m),(m),(m),(m),(m),(m),(m),(m),(m),(m), \
@ -1107,9 +1110,7 @@ gmtime_with_leapsecond(const time_t *timep, struct tm *result)
result->tm_yday = leap_year_p(result->tm_year + 1900) ? 365 : 364;
}
else if (result->tm_mday == 1) {
const int8_t *days_in_month = leap_year_p(result->tm_year + 1900) ?
leap_year_days_in_month :
common_year_days_in_month;
const int8_t *days_in_month = days_in_month_of(result->tm_year + 1900);
result->tm_mon--;
result->tm_mday = days_in_month[result->tm_mon];
result->tm_yday--;
@ -1128,8 +1129,7 @@ gmtime_with_leapsecond(const time_t *timep, struct tm *result)
result->tm_mday = 1;
result->tm_yday = 0;
}
else if (result->tm_mday == (leap ? leap_year_days_in_month :
common_year_days_in_month)[result->tm_mon]) {
else if (result->tm_mday == days_in_month_of(leap)[result->tm_mon]) {
result->tm_mon++;
result->tm_mday = 1;
result->tm_yday++;
@ -2030,9 +2030,7 @@ vtm_add_offset(struct vtm *vtm, VALUE off, int sign)
vtm->yday = leap_year_v_p(vtm->year) ? 366 : 365;
}
else if (vtm->mday == 1) {
const int8_t *days_in_month = leap_year_v_p(vtm->year) ?
leap_year_days_in_month :
common_year_days_in_month;
const int8_t *days_in_month = days_in_month_in(vtm->year);
vtm->mon--;
vtm->mday = days_in_month[vtm->mon-1];
vtm->yday--;
@ -2051,8 +2049,7 @@ vtm_add_offset(struct vtm *vtm, VALUE off, int sign)
vtm->mday = 1;
vtm->yday = 1;
}
else if (vtm->mday == (leap ? leap_year_days_in_month :
common_year_days_in_month)[vtm->mon-1]) {
else if (vtm->mday == days_in_month_of(leap)[vtm->mon-1]) {
vtm->mon++;
vtm->mday = 1;
vtm->yday++;
@ -3061,9 +3058,7 @@ find_time_t(struct tm *tptr, int utc_p, time_t *tp)
tm0.tm_min = 0;
tm0.tm_sec = 0;
}
else if ((d = (leap_year_p(1900 + tm0.tm_year) ?
leap_year_days_in_month :
common_year_days_in_month)[tm0.tm_mon]) < tm0.tm_mday) {
else if ((d = days_in_month_in(1900 + tm0.tm_year)[tm0.tm_mon]) < tm0.tm_mday) {
tm0.tm_mday = d;
tm0.tm_hour = 23;
tm0.tm_min = 59;