On Tue, November 1, 2011 11:36, Felipe Monteiro de Carvalho wrote: > One idea: In Now if you read the timezones, then store the value of > Now. In subsequent calls check if 1 hour has passed since the last > time the timezones were checked. If yes, then update the timezones and > store this new base value of Now. > > This makes a compromise between speed and correctnees. It would at > most be wrong for 1 hour during a long running application. For other > applications which call Now very frequently we only add some value > checkes more to the overhead, which shouldn't be expensive.
Comparing to the DST transition time as suggested in my previous e-mail (and also mentioned by Michael) is probably equally expensive in terms of runtime overhead (except for the initialization, but that isn't a major factor) but more accurate. Tomas _______________________________________________ fpc-devel maillist - fpc-devel@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-devel
