Hi Sven, Thank you for comment :) I am interested in a high level description of how these concepts (virtual / reintroduce / overloading) differs and how they affect programming, and I am currently not running into trouble, just try to get a better understanding of the language.
I'll explain my question / confusions: 1) I didn't notice that my question are related to "modes" of fpc, i.e. turbo-pascal/delphi/objfpc. If they are different, I would like to know more details, and I am more interested in objfpc mode, not those "compatibility" modes. 2) I know override / overload are completely different thing, I am not trying to compare apple with orange. Also, I am clear about the definition of virtual methods and their purpose. What I need help is to explain the observations I found with my demo app (which is a bit different than I expected). For example, why we need "reintroduce" while "overload" does the same job and better (it makes both methods available)? Thanks, Shannon 2013/8/20 Sven Barth <pascaldra...@googlemail.com> > Am 20.08.2013 14:39 schrieb "Antonio Fortuny" <a.fort...@sitasoftware.lu>: > > > > > > > Le 20/08/2013 14:34, Sven Barth a écrit : > >> > >> >> > >> >> This is not same as the description in: > http://www.freepascal.org/docs-html/ref/refsu26.html > >> >> > >> >> BTW, the above documents are talking about objects, but I am using > classes, is there any difference here? > >> > > >> > Yep: a class is a construct definig a collection of variables, > properties and methods whilst an object is an instantiated class. > >> > >> You are aware that the link mentioned by Xiangrong Fang points to a > part of the manual about Turbo Pascal style objects which are different in > a different sense to Delphi style objects/classes? > > > > Yes, but as he posts a question in a FPC list I imagine he is looking > for some general information. He looks not to be in trouble. Lest's wait > and see > > That has nothing to do with FPC list or not. Xiangrong Fang asked about > two different language features here and you told him something about a > completely different difference related to one of the two language features. > Your answer is simply not an answer to his question. > > Regards, > Sven > > _______________________________________________ > fpc-pascal maillist - fpc-pascal@lists.freepascal.org > http://lists.freepascal.org/mailman/listinfo/fpc-pascal >
_______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
