> > I don't know if rtl-optimilisation patches have a large priority, but > > nevertheless this patch improves the speed of the sysutils.uppercase and > > lowercase functions. > > I fail to see how changing a while loop to a for loop improves speed ? > I could understand if you'd use a PChar and use pointer math, but not this ?
I wasn't completely sure, so i made a test-prog which called the function 50.000 times, and measured the time it took to run a few times. And then again with the other version. (approx 2.5 sec against 1.4) And I think it's because the removal of the begin/end. And Peter always says that you can't change the running variable in a for-loop because of the optimilisations... So i suppose that a for-loop has several optimilisations which a while doesn't... Joost. _______________________________________________ fpc-devel maillist - [email protected] http://lists.freepascal.org/mailman/listinfo/fpc-devel
