Hi All!

I am working on a generic type library and ran into a problem at compile time.

type
generic TMyType<T> = class
*
*
*

   function IndexOf( Item : T ) : Integer; overload;
   functionIndexOf( aName : String) : Integer; overload;

// generics1.pas Error: Function is already declared Public\Forward
"TMyType.IndexOf(AnsiString):LongInt;"
// or, reverse the declarations:
     function     IndexOf( aName : String ) : Integer;  overload;
     function     IndexOf( Item : T ) : Integer; overload;
// generics1.pas Error: Function is already declared Public\Forward
"TMyType.IndexOf(<undefined type>):LongInt;"
end;

Similar errors occur in implementation of the overloaded subprograms, as in:

// generics1.pas Error: function header "IndexOf" doesn't match forward
: var name changes aName => Item

The obvious work-around is to avoid overloading with generic types as parameters, but that is really a hack in this case.

Keep up the GREAT work,

Don Z.

What version of FPC did you try with? If it was 2.6.0 or 2.6.1 or anything older then please try with a recent trunk version. I fixed this problem some weeks ago.
If you already tested with a recent trunk version of FPC than please open a bug report for the compiler with a simple example that does not depend on the LCL and should compile.

Regards,
Sven

Hi Sven!

According to Lazarus (0.9.30.4) Help|About, fpc is version 2.6.0.

I will try with a recent trunk version (if I can figure out how to do it :-[ ) and let you know the results.

Thanks,

Don Z.