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From Branko Čibej <br...@xbc.nu>
Subject Re: Fixing tm_gmtoff behaviour on Win32 (again)
Date Sun, 09 Jun 2002 20:32:15 GMT
Since there were no objections, I committed this change. tm_gmtoff on 
has the same semantics now on Windows as on Unix.


Branko Čibej wrote:

> Subversion got bitten by the APR time functions on Windows again. The 
> culprit, as usual, was incorrect semantics of the tm_gmtoff field in 
> apr_time_exp_t in the presence of DST. I decided that enough was 
> enough, and it was time to do something about it.
>
> It turned out that none of the tests in testtime.c tickled that 
> particular problem, so I added a test case (see patch below). The test 
> passed on Unix with and withoug DST, and failed on Windows with DST 
> enabled; again, as expected.
>
> I tracked down the provblem to the way tm_gmtoff was computed from the 
> system's timezone info. Reading the docs for GetTimezoneInformation 
> suggested that we should be using the StandardBias and DaylightBias 
> fields compute tm_gmtoff, so that's what I did. The test now passes on 
> Win2k (and presumably NT and XP) both with and without DST, and the 
> relevant Subversion test passes, too.
>
> Now, before I commit this patch, I'd like to ask people to test it on 
> Win95/98/Me (and possibly WinCE). I don't have access to any of these 
> platforms, and the docs suggest there may be some difference on the 
> Win9x series at least.
>
> Thanks,
>    Brane 


-- 
Brane Čibej   <brane@xbc.nu>   http://www.xbc.nu/brane/



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