PK_ERROR_code_t   PK_PARTITION_ask_bodies
(
--- received arguments ---
PK_PARTITION_t    partition,        --- a partition

--- returned arguments ---
int        *const n_bodies,         --- number of bodies (>= 0)
PK_BODY_t **const bodies            --- bodies (optional)
)


This function returns the set of bodies in the given partition.


The output array bodies is optional. If it is set to NULL, the function
will only compute the number of bodies in the partition.