I have this:
uses fgl;
Type
   RScene=record
     ID : Word;
     Name, Category : String;
   end;
   TSceneList=specialize TFPGList<RScene>;

The error is: Operator is not overloaded: "RScene" = "RScene"

I suppose the generic thing does not know how to compare 2 records. How do I solve that?

Dennis

Provide a "=" operator overload for the record:

=== code begin ===

uses fgl;
{$modeswitch advanced_records}
Type
    RScene=record
      ID : Word;
      Name, Category : String;
      class operator = (aLeft, aRight: RScene): Boolean;
    end;
    TSceneList=specialize TFPGList<RScene>;
class operator RScene.=(aLeft, aRight: RScene): Boolean;
begin
   ...
end;

=== code end ===

Regards,
Sven

Sven,

Thanks a lot. It worked.

Generics, advanced record, customized operator ... all these new features are so cool.
I am impressed that Free Pascal has become so powerful.

Dennis

uses fgl;

At least generics and operator overloads aren't that new. What's new is that generics contain less bugs (at least in 2.7.1 compared to earlier versions) and that operators can be used inside records (together with normal methods).

Regards,
Sven

and that operators can be used inside records

I just knew this one :)

Sven,
I am still using fpc 2.6.2.

May I know whether the generics bugs for 2.6.2 are catchable at compiler times or I only get to find out at run time?

Dennis

I'm currently not aware of any runtime bugs so all should be noticable by the compiler complaining about your code :) (and these complains can be very strange compile or link errors)

Regards,
Sven