Function tarantool_rust_module::box_tuple_seek [−] [src]

pub unsafe extern "C" fn box_tuple_seek(
    it: *mut BoxTupleIterator, 
    fieldno: u32
) -> *const c_char

Seek the tuple iterator.

The returned buffer is valid until next call to box_tuple_* API. Requested fieldno returned by next call to box_tuple_next(it).

\param it tuple iterator \param fieldno - zero-based position in MsgPack array. \post box_tuple_position(it) == fieldno if returned value is not NULL \post box_tuple_position(it) == box_tuple_field_count(tuple) if returned value is NULL.