formatting

Author: abakst

chc/api/XPredicate.py

@@ -1231,3 +1231,17 @@ def is_valid_mem(self) -> bool:
 
     def __str__(self) -> str:
         return "valid-mem(" + str(self.term) + ")"
+
+
+@ifdregistry.register_tag("ew", XPredicate)
+class XWritesErrno(XPredicate):
+    """errno must have been written locally.
+    """
+
+    def __init__(
+            self, ifd: "InterfaceDictionary", ixval: IT.IndexedTableValue
+    ) -> None:
+        XPredicate.__init__(self, ifd, ixval)
+
+    def __str__(self) -> str:
+        return "errno-must-written()"

chc/proof/CPOPredicate.py

@@ -2231,6 +2231,7 @@ def is_preserves_all_memory(self) -> bool:
     def __str__(self) -> str:
         return "preserves-all-memory()"
 
+
 @pdregistry.register_tag("ew", CPOPredicate)
 class CPOErrnoMustBeWritten(CPOPredicate):
     """errno-must-written(): true if errno must have been written locally.
@@ -2248,6 +2249,7 @@ def is_errno_must_written(self) -> bool:
     def __str__(self) -> str:
         return "errno-must-written()"
 
+
 @pdregistry.register_tag("pv", CPOPredicate)
 class CPOPreservedValue(CPOPredicate):
     """preserves-value(exp): true of a function that preserves the value of exp.