Function my_hash_first

mysys/hash.c:262–273

*/

uchar* my_hash_first(const HASH *hash, const uchar *key, size_t length,
                     HASH_SEARCH_STATE *current_record)
{
  uchar *res;
  if (my_hash_inited(hash))
    res= my_hash_first_from_hash_value(hash,
                   calc_hash(hash, key, length ? length : hash->key_length),
                   key, length, current_record);
  else
    res= 0;
  return res;
}


uchar* my_hash_first_from_hash_value(const HASH *hash,