On perjantai, 27. marraskuuta 2009 23:52:30 Frank Peelo wrote: > > The reason is that a for-loop tries to make a number of reasonable > > guarantees that the counter variable cannot be modified during the loop. > > E.g., direct assignments to a counter variable are forbidden inside the > > loop (except in TP-mode). If you use a private field, then any method of > > that class called in the body of the loop can easily (accidentally) > > change the value of the counter variable, completely messing up the loop. > > In any case, why would one want a loop counter to have any more than the > minimum possible scope? Why would one want it to be a class data member > at all? Surely it would be far better/neater/more elegant, if it is used > by methods, to pass it as a parameter?
Right, it is better define it locally. I did this experiment by accident when copying code around. This is actually a good deviation from Delphi's rules. No problem here. There are some other deviations which look weird for me, like treating "string" as a dynamic ansistring sometimes but as an old shortstring sometimes. That is in the default {$mode objfpc}. Fortunately there is {$mode delphi} which behaves more logically. I understand it is important to support also the old shortstring but it should be defined explicitly and "string" should always mean just one thing. Well, I guess this has been discussed before... I can always use mode delphi. Juha Manninen _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal