Koen Claessen koen@.cs.chalmers.se writes:

Playing around with H/Direct, I often get the error:

ERROR: Too many ForeignObjs open

I think that in my case, a simple garbage collect would get rid of a lot of these foreign objects. Is this true? In other words: would a garbage collect just before this error is generated help?

Yes, it often will & the code already does this if there are no more empty slots in the table (by default, the table size is 10000 in a large Hugs configuration.) Exhausting that limit is in my experience a sign that you're accidentally holding on to too much external state (maybe at a too fine-grained a level -- this was an issue in an earlier version of the Com support libraries, for instance.) If you need to have that many FOs live, upping the limit & recompiling Hugs is the only way around the problem. --sigbjorn