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- From: "Andrew A. Chernov, Black Mage" <ache@astral.msk.su>
- Newsgroups: comp.unix.bsd
- Subject: [386bsd] New patch00071 is slightly wrong
- Date: Wed, 27 Jan 93 15:50:34 +0300
- Distribution: world
- Organization: Ha-oh-lahm Yetzirah
- Message-ID: <bIQKePhq40@astral.msk.su>
- Sender: news-service@newcom.kiae.su
- Reply-To: ache@astral.msk.su
- Lines: 18
-
- I just look into new patch00071 of clock.c and found small bug,
- it don't calculate leap year properly, produce error in 2000 year.
-
- ! if (sec < 1970)
- ! sec += 100;
- ! leap = !(sec % 4); sec = ytos(sec); /* year */
-
- Correct way to calculate leap year is:
-
- #define isleap(y) (((y) % 4) == 0 && ((y) % 100) != 0 || ((y) % 400) == 0)
-
- see for example /usr/include/tzfile.h
- --
- In-This-Life: Andrew A. Chernov | "Hay mas dicha, mas contento
- Internet: ache@astral.msk.su | "Que adorar una hermosura
- FIDOnet: 2:5020/23.34 | "Brujuleada entre los lejos
- Organization: The RELCOM Corp. | "De lo imposible?!" (Calderon)
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