Hello FPC-Pascal, Saturday, May 29, 2010, 12:34:38 AM, you wrote:
>> TObject is the base class, it inherits from nobody. To make the whole >> weel run a base class must exists which provide basic functionality >> like Create/Destroy and other methods/events like "ClassName", >> "InheritsFrom"; so if no class is specified it automatically inherits >> from TObject. AN> I see, and I suspected it was for these reasons, but allow me to say AN> this is some sort of helper functions one might not need. AN> "InhritsFrom", just like Delphi's "Is" (don't know if FPC has the same AN> keyword, anyway) are things that can be dealt with the RTTI... The classes in Pascal are more like "MFC" framework in MSVC. Most functions does not eat a single byte of memory, RTTI are much more memory expensive (maybe somebody corrects me?). >> Pure class in the same idea does not exists in Pascal as in C, or at >> least they do not exists a few time ago. AN> classes in C are just mere structures, with no inheritance capability AN> (i.e no VMT, AFAIK). I'm talking about C99, not C with classes AN> and-or-the-like-extensions to the language. AN> In C++ no base class exists. I can define a "class TMyClass" descending AN> from nothing, and have nothing else than it, as my _base_ class. In Pascal that's a "Object" not a "Class". There was a recent thread about the differences and why Classes are more used than objects. AN> P.S. AN> I'll probably read/reply tomorrow (ok, later today, GMT + 3...), as now AN> I'm tired and wishing to go to bed ;-) Have nice dreams... -- Best regards, José _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
