The function bfd_hash_traverse may be used to traverse a
hash table, calling a function on each element. The traversal
is done in a random order.
bfd_hash_traverse takes as arguments a function and a
generic void * pointer. The function is called with a
hash table entry (a struct bfd_hash_entry *) and the
generic pointer passed to bfd_hash_traverse. The function
must return a boolean value, which indicates whether to
continue traversing the hash table. If the function returns
FALSE, bfd_hash_traverse will stop the traversal and
return immediately.