time_t c++ stack overflow
time_t mktimeUTC(struct tm* timeinfo)
{
// *** enter in UTC mode
char* oldTZ = getenv("TZ");
putenv("TZ=UTC");
_tzset();
// ***
time_t ret = mktime ( timeinfo );
// *** Restore previous TZ
if(oldTZ == NULL)
{
putenv("TZ=");
}
else
{
char buff[255];
sprintf(buff,"TZ=%s",oldTZ);
putenv(buff);
}
_tzset();
// ***
return ret;
}