From: "Mattias Andrée" <maandree@kth.se>
To: musl@lists.openwall.com
Cc: "Mattias Andrée" <maandree@kth.se>
Subject: [musl] [PATCH] Remove unnecessary if in __secs_to_tm
Date: Sun, 28 Feb 2021 16:09:12 +0100 [thread overview]
Message-ID: <20210228150912.1532943-1-maandree@kth.se> (raw)
Since years divisible by 100 but not by 400 are not leap years,
q_cycles can at most be 24 (DAYS_PER_100Y / DAYS_PER_4Y == 24).
---
src/time/__secs_to_tm.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/src/time/__secs_to_tm.c b/src/time/__secs_to_tm.c
index 093d9021..2d0c0b2c 100644
--- a/src/time/__secs_to_tm.c
+++ b/src/time/__secs_to_tm.c
@@ -44,8 +44,7 @@ int __secs_to_tm(long long t, struct tm *tm)
remdays -= c_cycles * DAYS_PER_100Y;
q_cycles = remdays / DAYS_PER_4Y;
- if (q_cycles == 25) q_cycles--;
- remdays -= q_cycles * DAYS_PER_4Y;
+ remdays %= DAYS_PER_4Y;
remyears = remdays / 365;
if (remyears == 4) remyears--;
--
2.30.1
next reply other threads:[~2021-02-28 15:09 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-28 15:09 Mattias Andrée [this message]
2021-02-28 17:06 ` Rich Felker
2021-02-28 17:24 ` Mattias Andrée
2021-02-28 17:34 ` Rich Felker
2021-02-28 19:22 ` [musl] [PATCH v2 1/2] " Mattias Andrée
2021-02-28 19:22 ` [musl] [PATCH v2 2/2] Use modulo instead of mul+sub " Mattias Andrée
2021-02-28 19:37 ` Szabolcs Nagy
2021-02-28 19:52 ` Mattias Andrée
2021-02-28 19:58 ` Jon Chesterfield
2021-03-01 19:26 ` Markus Wichmann
2021-02-28 19:27 ` [musl] [PATCH v3 1/2] Remove unnecessary if " Mattias Andrée
2021-02-28 19:27 ` [musl] [PATCH v3 2/2] Use modulo instead of mul+sub " Mattias Andrée
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