bool

       MongoDB, Inc

       2009-present, MongoDB, Inc.

1.30.4                                            Jun 08, 2025                                 BSON_ITER_NEXT(3)

       Advances iter to the next element in the document.

       • iter: A bson_iter_t.

       true  if  iter  was  advanced.  Returns  false  if  iter  has  passed the last element in the document or
       encountered invalid BSON.

       It is a programming error to use iter after this function has returned false.

          bool
          bson_iter_next (bson_iter_t *iter);