IfcUniquePropertyName
EXPRESS specification:
FUNCTION
IfcUniquePropertyName
(Properties : SET [1:?] OF IfcProperty)
:LOGICAL;
LOCAL
Names : SET OF IfcIdentifier := [];
END_LOCAL;
REPEAT i:=1 TO HIINDEX(Properties);
Names := Names + Properties[i].Name;
END_REPEAT;
RETURN (SIZEOF(Names) = SIZEOF(Properties));
END_FUNCTION
;