On terça-feira, 27 de agosto de 2013 21:40:29, Constantin Makshin wrote: > When converting time from UTC to local time, Windows uses the *current* > state of daylight saving, not one that was active at the time the > original timestamp is "pointing" to.
Hmm... we have two versions of the code: FileTimeToSystemTime and gmtime. Are
you saying that gmtime is broken and does not apply the correct historical
daylight saving settings?
#if defined(Q_OS_WINCE)
tm res;
FILETIME localTime = time_tToFt(secsSince1Jan1970UTC);
SYSTEMTIME sysTime;
FileTimeToSystemTime(&localTime, &sysTime);
FILETIME resultTime;
LocalFileTimeToFileTime(&localTime , &resultTime);
FileTimeToSystemTime(&resultTime , &sysTime);
res.tm_sec = sysTime.wSecond;
res.tm_min = sysTime.wMinute;
res.tm_hour = sysTime.wHour;
res.tm_mday = sysTime.wDay;
res.tm_mon = sysTime.wMonth - 1;
res.tm_year = sysTime.wYear - 1900;
res.tm_isdst = (int)isdst;
brokenDown = &res;
#elif !defined(QT_NO_THREAD) && defined(_POSIX_THREAD_SAFE_FUNCTIONS)
// use the reentrant version of gmtime() where available
tm res;
brokenDown = gmtime_r(&secsSince1Jan1970UTC, &res);
#elif defined(_MSC_VER) && _MSC_VER >= 1400
tm res;
if (!_gmtime64_s(&res, &secsSince1Jan1970UTC))
brokenDown = &res;
#else
brokenDown = gmtime(&secsSince1Jan1970UTC);
#endif // !QT_NO_THREAD && _POSIX_THREAD_SAFE_FUNCTIONS
--
Thiago Macieira - thiago.macieira (AT) intel.com
Software Architect - Intel Open Source Technology Center
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