kv_iterator_size()
#include <kvstore.h>
kv_int_t 
kv_iterator_size(const kv_iterator_t *iterator) Returns the number of items contained in the iterator. This function can only be used with iterators returned by the kv_multi_* line of functions. The iterators returned by other functions, such as kv_store_iterator(), are not usable by this function. 
                  
Parameters
- 
                        store The store parameter is the handle to the store to which the iterator belongs. 
- 
                        iterator The iterator parameter is the handle to the iterator for which you want sizing information.