[fpc-pascal] lul.pas does not compile with fpc 2.2.0
giuliano.colla at fastwebnet.it
Sun Feb 10 01:33:40 CET 2008
Skybuck Flying ha scritto:
> Doesn't make much sense to me at least.
> Who still codes in 16 bit or turbo pascal ?
> 64 KB programs ?
> Terrible limitations.
> I am glad those days are dead/gone/over.
If you want Delphi mode, you just put
at the beginning of your unit, among the other compiler switches (if any).
If you don't, you get the default fpc mode, which requires a stricter
type TPenis = class // accepted in Delphi mode
is a shortcut for
type TPenis = class(TObject) // required in fpc mode
In both cases TPenis is a descendant of TObject, but in Delphi mode case
you don't see it.
From Delphi manual page:
If the declaration of a class type doesn't specify an ancestor, the
class inherits directly from TObject. Thus
type TMyClass = class
is equivalent to
type TMyClass = class(TObject)
The latter form is recommended for readability.
So if you follow Delphi manuals recommendation, you don't see the
difference, from 16 bits TP to 64 bit fpc. If you choose not to follow
them, then you must specify that you want Delphi mode.
Another difference you'll find from fpc mode to Delphi mode is the
implicit pointer accepted for constructs such as:
MyObjectOnClick := Button1Click; // accepted in Delphi mode
as opposed to:
MyObjectOnClick := @Button1Click; // required in fpc mode
I'd suggest you to read the wiki pages from Mattias reply.
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