UAF_ALGEBRA
flags = UAF_LOAD | UAF_HALF | UAF_ALGEBRA;
flags = UAF_LOAD | UAF_HALF | UAF_ALGEBRA | UAF_UPDATE;
flags = UAF_LOAD | UAF_HALF | UAF_ALGEBRA;
flags = UAF_LOAD | UAF_HALF | UAF_ALGEBRA | UAF_UPDATE;
algebra = flags & UAF_ALGEBRA,