[Mono-list] Please help me with polimorfism, etc. (possible bug in the compiler?)

[RoBiK]

Hi Roberto!

Your code has nothing to do with polymorphism. What you do is called
"hyding".
Please read this:
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/csspec/html
/vclrfcsharpspec_3_7_1.asp

Anyway, in your example, you can never get different output form
this.GetType() and o.GetType() because both this and o point to the same
instance.

Robert


-----Original Message-----
From: mono-list-admin@lists.ximian.com
[mailto:mono-list-admin@lists.ximian.com] On Behalf Of Roberto Jimeno
Sent: Donnerstag, 23. September 2004 07:27
To: mono-list@lists.ximian.com
Subject: [Mono-list] Please help me with polimorfism, etc. (possible bug in
the compiler?)

Please help me monoers,

some days ago I was overriding Object's Equals() when I came across what I
thought to be a bug. Now I think I'm simply being confused about
inheritance, polimorfism, substitutability principle and such. Please
compile and execute the small example (attached file). You will see the
string:

"Types of self and argument are derivedClass and derivedClass respectively."

, while I was expecting to see

"Types of self and argument are derivedClass and baseClass respectively."

Can you tell me which changes (a suggestions is commented out in the
code) should I apply to my code in order to obtain the "baseClass"
expected result?

TIA