It's not possible to define an operator like:

Operator AbcXyz(r : real; z1 : complex) z : complex;
begin
end;

Is it?

Has to be a symbol?

If one could use words or text as operators this might be very interesting, although, probably a double edged sword like Lisp where you could embed programming languages inside programming languages.

For example:

  x := 4 PLUS 4;
  writeln(x);

Prints 8..

Operator Plus(...);
begin
end;

So you just invented Cobol inside fpc or something like cobol. Bad example..

Hi,

You can use words.
But only words that the compiler defines. See the documentation.

Michael.

Only existing operators can be overloaded. For everything else, use a function.

Regards,
Sven

documentation.

That's not what he meant. Even if one overloads operator "Less" then one still has to use it as "<".

Regards,
Sven