[Lazarus] operator overloading

[xrfang]

Hi All,

How can I use operator overloading?  I know the syntax, but it simply does not compile...  My situation is:

1. I wrote a TTreap generic class, which is a binary tree.
2. TTreap defines a Compare() with involves < and > operation on its keys.
3. I try to specialize it with the following:

===================================================
interface

TPainterManager = class(specialize TTreap<TPainter, Integer>)
public
    class operator < (p1, p2: TPainter) b: Boolean; <-- method1
end;

operator < (p1, p2: TPainter) b: Boolean; <-- method2

implementation
..
===================================================

but neither method1 nor method2 compiles.

What is the correct way to write operator overload routines?

Thanks,
Shannon  I 
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