bool

       MongoDB, Inc

       2009-present, MongoDB, Inc.

1.30.4                                            Jun 08, 2025                         MONGOC_ERROR_HAS_LABEL(3)

       • reply: A non-NULL pointer to overwritablestorage for a bson_t to contain the results.

       • label: The label to test for, such as "TransientTransactionError" or "UnknownTransactionCommitResult".

       Returns true if reply contains the error label.

          bool
          mongoc_error_has_label (const bson_t *reply, const char *label);

       Test  whether  a  reply  from  a  failed  operation includes a specific error label. See ErrorLabels for
       details, and see mongoc_client_session_start_transaction() for example code that demonstrates their use.