Il 05/02/2011 00:50, piotrm ha scritto:
Hellos, "Out_of_memory" exceptions are thrown using the ocaml interface when doing very very simple tasks, like below. I have yet to find an example on the use of linear_partition using the ocaml interface so I hope I'm not embarrassing myself by using it incorrectly. Also, the ppl_Polyhedron_OK returns false right before get_minimized_constraints (or most other polyhedron functions) result in the exception.
The same task is performed just fine using the C++ interface. Any info regarding this issue would be greatly appreciated.
Function ppl_Pointset_Powerset_NNC_Polyhedron_get_disjunct should be working as expected now. Can you please retry and tell us how it goes?
Thanks again, Enea.
PS: a warning on the use of powerset's disjuncts. The elements (in this case, NNC polyhedra) retrieved from a powerset using function ppl_Pointset_Powerset_*_get_disjunct are meant to be *read-only* (because their resources are still owned by the powerset). It is perfectly fine to query them so as, e.g., to obtain their (minimized) constraints/generators, but other operations that may actually change the disjuncts should be avoided. If needed, you can take a copy of the disjunct and modify the copy. If you need to modify the disjunct itself (i.e., the very same element *in* the powerset), then you should first remove it from the powerset (using ppl_Pointset_Powerset_NNC_Polyhedron_drop_disjunct) and then add back the modified version (using ppl_Pointset_Powerset_NNC_Polyhedron_add_disjunct).