diff options
author | Jannis Hoffmann <jannis@fehcom.de> | 2024-07-18 15:23:02 +0200 |
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committer | Jannis Hoffmann <jannis@fehcom.de> | 2024-07-18 15:23:02 +0200 |
commit | 9837632ea985b87eb6aaa7f619a0b859fc6c40f6 (patch) | |
tree | f143461843ba2fdaa8e7499ebf52afda3eb08cd4 /src/datetime_un.c | |
parent | 7b4d3ab22988d021d5f12b81aec746f7e486fa52 (diff) |
Diffstat (limited to 'src/datetime_un.c')
-rw-r--r-- | src/datetime_un.c | 35 |
1 files changed, 0 insertions, 35 deletions
diff --git a/src/datetime_un.c b/src/datetime_un.c deleted file mode 100644 index e84806d..0000000 --- a/src/datetime_un.c +++ /dev/null @@ -1,35 +0,0 @@ -#include "datetime.h" - -/* roughly 100x faster than mktime() */ - -datetime_sec datetime_untai(struct datetime *dt) -{ - int year; - int day; - int mon; - - year = dt->year + 1900; - - mon = dt->mon; - if (mon >= 2) { mon -= 2; } - else { mon += 10; --year; } - - day = (dt->mday - 1) * 10 + 5 + 306 * mon; - day /= 10; - - if (day == 365) { year -= 3; day = 1460; } - else { day += 365 * (year % 4); } - year /= 4; - - day += 1461 * (year % 25); - year /= 25; - - if (day == 36524) { year -= 3; day = 146096; } - else { day += 36524 * (year % 4); } - year /= 4; - - day += 146097 * (year - 5); - day += 11017; - - return ((day * 24 + dt->hour) * 60 + dt->min) * 60 + dt->sec; -} |