Fault Code data type

Is the data type for a Fault Code always supposed to be a int? The
spec specifically specifies the value as being an int, but doesn't
address if that is how it has to be implemented.

<member>
<name>faultCode</name>
<value><int>4</int></value>
</member>


I ask b/c I'd like to be able to use a string for my fault code (to
the class name of an exception that is bubbling up), but don't want to
break the standard. I did dig into the XML-RPC server I'm using
(PEAR's XML-RPC2) and found that they were casting the code as an int,
but after removing their own client library handled the string just fine.

IF it's not a no-no, anyone have any insight into whether I may run
into problems w/ other various other client libraries not expecting
(and possibly puking on) a string as the code?

thanks,


jesse


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