the empty dict

Daniel Lyons <[email protected]> Tue, 10 Dec 2013 10:56:42 -0600

Newsgroups	gmane.comp.ai.prolog.swi
Message-ID	<[email protected]>

Hi,

I'm trying to get a feel for how the new dict type works but I'm getting
hung up on the absolute most basic step: the empty dict. This works, for
instance:

  ?- get_dict(Key, d{}, V).
  false.

But this enters an infinite loop:

  ?- get_dict_ex(nonexistent, d{}, V).
  << loops >>

Same with get_dict/3. Tracing is no help either.

I'm using SWI version 7.1.2 which I built from source on RHEL 6. Any
idea what I'm doing wrong?

Thanks,

-- 
Daniel Lyons