bool

       MongoDB, Inc

       2009-present, MongoDB, Inc.

1.30.4                                            Jun 08, 2025                    MONGOC_WRITE_CONCERN_APPEND(3)

       This  function  appends a write concern to command options. It is useful for appending a write concern to
       command options before passing them to mongoc_client_write_command_with_opts() or a related function that
       takes an options document.

       See the example code for mongoc_client_write_command_with_opts().

       • write_concern: A pointer to a mongoc_write_concern_t.

       • command: A pointer to a bson_t.

       Returns true on success. If any arguments are invalid, returns false and logs an error.

          bool
          mongoc_write_concern_append (mongoc_write_concern_t *write_concern,
                                       bson_t *command);