Index - U
| unAnnot | Language.Cimple |
| UnaryExpr | Language.Cimple |
| UnaryOp | Language.Cimple |
| Union | Language.Cimple |
| UopAddress | Language.Cimple |
| UopDecr | Language.Cimple |
| UopDeref | Language.Cimple |
| UopIncr | Language.Cimple |
| UopMinus | Language.Cimple |
| UopNeg | Language.Cimple |
| UopNot | Language.Cimple |