EC_R_UNKNOWN_GROUP
ERR_raise_data(ERR_LIB_EC, EC_R_UNKNOWN_GROUP,
ERR_raise(ERR_LIB_EC, EC_R_UNKNOWN_GROUP);
{ ERR_PACK(ERR_LIB_EC, 0, EC_R_UNKNOWN_GROUP), "unknown group" },
&& (reason == EC_R_UNKNOWN_GROUP