On 13.11.2010 14:28, Michael Van Canneyt wrote:
On Sat, 13 Nov 2010, Sven Barth wrote:
Hello together!
I've installed FPC 2.4.2 and after reading the page about the changes
since 2.4.0, I've compiled Lazarus and noticed a warning in imglist.pp
regarding a Equals method (already reported). Now I remembered that
http://wiki.freepascal.org/User_Changes_2.4.2#TObject_class_declaration mentions
that FPC warns in mode delphi, but generates an error in mode objfpc.
So I looked at the top of the unit, but did found "{$mode objfpc}".
Puzzled, I wrote the following test program:
==== source begin ====
==== source end ====
Compiling it with FPC 2.4.2 (and 2.5.1 as well) results only in
warnings regarding the methods Equals and ToString and not errors as
expected after reading the wiki.
So who is right?
a) the wiki (thus there is a bug in FPC - very bad, because 2.4.2 is
already released)
b) the compiler (thus the wiki is wrong)
The compiler is right. You can always re-introduce methods.
But if you call 'TObject.Equals', your (wrongly declared) method will
not be called.
Standard OOP inheritance/overriding rules.
As told to Paul I've misunderstood the wiki entry. More precisely the
part "identifier". :)
Now the world is beautiful again :P
Regards,
Sven
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