*::: ClassAd::fPrintAsXML()
 *::: ClassAd::sPrintAsXML()
 *::: ClassAd::IsValidAttrValue()
+*::: ClassAd::operator==()
+*::: ClassAd::operator>=()
+*::: ClassAd::operator<=()
 *::: ExprTree::DeepCopy() *DONE*
 
 *: Write helper functions for these methods which we can't emulate transparently *[4 hours]*: