Re: mktime normalization without local/daylight adjustment

From:
"Doug Harrison [MVP]" <dsh@mvps.org>
Newsgroups:
microsoft.public.vc.language
Date:
Tue, 18 Sep 2007 11:22:05 -0500
Message-ID:
<cpsve3lkat1sqfno17mp2p4ec7pv13ucjq@4ax.com>
On Tue, 18 Sep 2007 03:15:56 -0700, "cbdeja@my-deja.com"
<cbdeja@my-deja.com> wrote:

Thanks Doug. After a bit of Googling it seems the change of TZ env
variable is the only way to do this - I THINK you also need to set
tm_isdst to -1.

For example this thread which you contributed to in 2002:

http://groups.google.co.uk/group/microsoft.public.vc.language/browse_frm/thread/e508f818cbe0261c/4509bccdec7e850c#4509bccdec7e850c

I'm using VC 2003 which I believe is VC version 7 - can I assume that
the bug you mentioned in the above thread does not affect me, or
should I use your workaround in case a user's PC has a version of the
C runtime library which does have the bug (i.e. it's not clear whether
the bug is in the compiler version or in the C runtime library.


The bug was in the VC6 library. Your VC7.1 program is not going to suddenly
start using the VC6 CRT, so if your msvcr71.dll doesn't have the bug, your
program should be fine (unless some version of msvcr71.dll we don't know
about has the bug, but that's true for any DLL usage).

--
Doug Harrison
Visual C++ MVP

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