On Jul 21, 2011, at 10:41 AM, Andy Dougherty wrote:

> Is there any reason to assume that an arbitrary pointer cast
> to a (Parrot_Int) will be positive?  I'd think a simple test that the
> pointer is non-NULL would be sufficient and appropriate.  That is, I'd
> have been tempted to write it:
> 
>    void *ptr;
>    ptr = Parrot_PMC_get_pointer(interp, pmc);
>    if (ptr)
>        Parrot_printf(interp,"Got pointer!\n");
> 
> But perhaps there's more to the story.

Have you tried making that change?  Does that make the tests pass?

IIRC, Parrot_Ints are signed, so pointers into the top half of the address 
space would appear negative.  Perhaps OpenBSD's heap is normally allocated 
above that mark?

~~ Brian
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