Date: Tue, 4 Sep 2001 16:50:01 -0700 (PDT) From: Archie Cobbs <archie@packetdesign.com> To: freebsd-bugs@FreeBSD.org Subject: Re: bin/30321: strftime(3) '%s' format does not work properly Message-ID: <200109042350.f84No1a82317@freefall.freebsd.org>
next in thread | raw e-mail | index | archive | help
The following reply was made to PR bin/30321; it has been noted by GNATS. From: Archie Cobbs <archie@packetdesign.com> To: Garrett Wollman <wollman@khavrinen.lcs.mit.edu> Cc: FreeBSD-gnats-submit@FreeBSD.ORG Subject: Re: bin/30321: strftime(3) '%s' format does not work properly Date: Tue, 04 Sep 2001 16:42:38 -0700 Garrett Wollman wrote: > > When it does this conversion, it uses the currently set > > system time zone instead of using the time zone from the > > 'struct tm' argument. Therefore, if the two timezones are > > different, incorrect results are computed. > > This behavior is correct. In the general case, as codified in the ISO > C standard, `struct tm' does not contain time zone information. ISO C > functions such as strftime() are specified to use the system's time > zone. The current behavior of '%s' is inconsistent with every other format character supported by strftime(3). For example, if you use '%z' you get the time zone offset read directly from the struct tm; the system time zone has no effect on that conversion whatsoever. Same for '%H', etc. So at best, it violates POLA and is bizarre, undocumented behavior. -Archie __________________________________________________________________________ Archie Cobbs * Packet Design * http://www.packetdesign.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200109042350.f84No1a82317>