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fix bug with timezone calculations when WX_GMTOFF_IN_TM si true

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@19364 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
2003-02-27 12:53:03 +00:00
parent 647b8e379e
commit c54322338f
1 changed files with 10 additions and 4 deletions
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14
src/common/datetime.cpp
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@@ -258,7 +258,8 @@ wxDateTime::wxDateTime_t GetNumOfDaysInMonth(int year, wxDateTime::Month month)
return daysInMonth[wxDateTime::IsLeapYear(year)][month];
}
// ensure that the timezone variable is set by calling localtime
// returns the time zone in the C sense, i.e. the difference UTC - local
// (in seconds)
static int GetTimeZone()
{
// set to TRUE when the timezone is set
@@ -266,20 +267,25 @@ static int GetTimeZone()
#ifdef WX_GMTOFF_IN_TM
static long gmtoffset = LONG_MAX; // invalid timezone
#endif
wxCRIT_SECT_LOCKER(lock, gs_critsectTimezone);
// ensure that the timezone variable is set by calling localtime
if ( !s_timezoneSet )
{
// just call localtime() instead of figuring out whether this system
// supports tzset(), _tzset() or something else
time_t t = 0;
time_t t = 0;
struct tm *tm;
tm = localtime(&t);
s_timezoneSet = TRUE;
#ifdef WX_GMTOFF_IN_TM
gmtoffset = tm->tm_gmtoff;
// note that GMT offset is the opposite of time zone and so to return
// consistent results in both WX_GMTOFF_IN_TM and !WX_GMTOFF_IN_TM
// cases we have to negate it
gmtoffset = -tm->tm_gmtoff;
#endif
}