On Fri, 20 Oct 2000, Chris Hecker wrote:

> 
> >It's exactly similar to value definitions: put a ``and'' between the
> >two recursive definitions.
> >type foo = B of bar
> >and bar = F of foo
> 
> Ah, thanks!  Is there any way to do it without the "and"?  In other words, what if I want to do this but the types are defined "far away" from each other in the source.  The "and" solution works, but I'm looking for something like forward declarations from C++:

There is no good solution. But may be the following can help you:

type 'bar foo = B of 'bar
...
type bar = F of bar foo

Regards, Anton