According to Nils Bokermann:

How do you want to compare structured variables? Compare member by member?

Yes. Except with types where we know that a simple byte compare is sufficient.

I knew a very fine programming language (ELAN) in which it was possible to define your own operator (`=', `<>' or whatever you wanted). Is it possible to have this as an extension to Pascal?

It's a PXSC extension which is already in GPC:

Operator = ( x, y: MyType ) result: Boolean;

begin (* MyType = MyType *) result:= ( x.foo = y.foo ) and ( x.bar = y.bar ) or whatever; end (* MyType = MyType *);

Greetings,

Peter

Dipl.-Phys. Peter Gerwinski, Essen, Germany, free physicist and programmer peter.gerwinski@uni-essen.de - http://home.pages.de/~peter.gerwinski/ [970201] maintainer GNU Pascal [970420] - http://home.pages.de/~gnu-pascal/ [970125]