On 20/08/2013 02:44, Xiangrong Fang wrote:
Hi All,
I am reading this document:
http://www.freepascal.org/docs-html/ref/refsu29.html and doing an
experiment with the following code:
program project1;
{$mode objfpc}{$H+}
type
TBase = class
constructor Create; virtual;
end;
TDerived
Thanks. Do you mean that the rules I see in the document apply to NORMAL
virtual methods, but not virtual constructors?
Also, I have a related question: it seems that to override methods in
ancestor it is required that the method has same signature, however
reintroduce will not have such
On 20/08/2013 07:32, Xiangrong Fang wrote:
Thanks. Do you mean that the rules I see in the document apply to
NORMAL virtual methods, but not virtual constructors?
They apply to constructors too. But...
A virtual/overridden method is looked up based on the class used in code
TDerived.create;
On 20/08/2013 07:32, Xiangrong Fang wrote:
Thanks. Do you mean that the rules I see in the document apply to
NORMAL virtual methods, but not virtual constructors?
for all the rest, you should look for a tutorial.
it is to complex for the mailing list
Le 20/08/2013 07:34, Xiangrong Fang a
crit:
Hi Flavio,
Your findings confirmed mine, but not telling me why? It
seems that the "virtual" keyword has no use at all! To
confirm this, I just removed the
On Tue, Aug 20, 2013 at 2:34 AM, Xiangrong Fang xrf...@gmail.com wrote:
Hi Flavio,
Your findings confirmed mine, but not telling me why?
I don't know why, maybe FPC used to be more strict about the use of
inherited, or the docs are simply wrong.
It seems that the virtual keyword has no use
Am 20.08.2013 09:36 schrieb Antonio Fortuny a.fort...@sitasoftware.lu:
Le 20/08/2013 07:34, Xiangrong Fang a écrit :
Hi Flavio,
Your findings confirmed mine, but not telling me why? It seems that the
virtual keyword has no use at all! To confirm this, I just removed the
inherited call in
Le 20/08/2013 14:34, Sven Barth a
crit:
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
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
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
On 20.08.2013 15:39, Xiangrong Fang wrote:
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.
It has nothing to
Hi All,
I am reading this document:
http://www.freepascal.org/docs-html/ref/refsu29.html and doing an
experiment with the following code:
program project1;
{$mode objfpc}{$H+}
type
TBase = class
constructor Create; virtual;
end;
TDerived = class(TBase)
constructor Create;
On Mon, Aug 19, 2013 at 10:44 PM, Xiangrong Fang xrf...@gmail.com wrote:
Hi All,
I am reading this document:
http://www.freepascal.org/docs-html/ref/refsu29.html and doing an
experiment with the following code:
program project1;
{$mode objfpc}{$H+}
type
TBase = class
constructor
Hi Flavio,
Your findings confirmed mine, but not telling me why? It seems that the
virtual keyword has no use at all! To confirm this, I just removed the
inherited call in TDerived, then re-run the program with or without
virtual/override, the result is exactly same, i.e. with c2 (declared as
14 matches
Mail list logo
