Re: Compiling Generics

[Andrew Haley <aph at redhat dot com>]

Jacob Jennings wrote:
> Hello, everyone. I just began using GCJ a short time ago, and I've
> just run into a bit of a problem--most likely stemming from my lack of
> knowledge about this compiler. In my Data Structures class, we program
> a lot using generics, and I'd love to use GCJ, but when I attempt to
> compile
> 
> public class ListNode<E> {
> ...
> // blah blah, data members, constructors, methods, etc.
> }
> 
> I get this error message:
> 
> ListNode.java:1: error: '{' expected.
> public class ListNode<E> {
>                         ^
> ListNode.java:1: confused by earlier errors, bailing out
> 
> Now when I compile this same code into bytecode with the Sun SDK, then
> compile the bytecode into machine code using GCJ, the compilation
> succeeds, and the resulting binary works perfectly fine. I would like
> to get away from using Sun's SDK unless I'm doing GUI programming. Is
> there a compile-time flag I'm missing or something? The command I'm
> trying to execute is "gcj -o LinkedQueue --main=LinkedQueue
> ListNode.java Queue.java LinkedQueue.java".

I suspect you're just using an obsolete version of gcj.  Generics have
worked for a year now, since gcj 4.3.0.

Andrew.