data specification
error
= ESUCCESS
| EFAIL
| ENOMEM
| ENOSPC
| EIO
| EEXISTS
| ENOENT
| EISDIR
| ENOTDIR
| ENOTEMPTY
| EBADFD
| EACCESS
| EINVAL
| ECOMMIT
| EROFS
| EUCLEAN
;
variables err : error;
err0 : error;
err1 : error;
end data specification