internal static void ThrowIfInvalid(timedelta delta, string funcname)
{
if (delta != null) {
if (delta._microseconds != 0 || delta._seconds % 60 != 0) {
throw PythonOps.ValueError("tzinfo.{0}() must return a whole number of minutes", funcname);
}
int minutes = (int)(delta.TimeSpanWithDaysAndSeconds.TotalSeconds / 60);
if (Math.Abs(minutes) >= 1440) {
throw PythonOps.ValueError("tzinfo.{0}() returned {1}; must be in -1439 .. 1439", funcname, minutes);
}
}
}
// supported operations
private static time Add(time date, timedelta delta) {
return new time(date._timeSpan.Add(delta.TimeSpanWithDaysAndSeconds), delta._microseconds + date._lostMicroseconds, date._tz);
}
