To demonstrate XML-RPC, we implement the following API in as many languages as possible.

struct sample.sumAndDifference (int x, int y)

This function takes two integers as arguments, and returns an XML-RPC <struct> containing two elements:

It's not very useful, but it makes a nice example. :-)

This function (and others) are available using the URL http://xmlrpc-c.sourceforge.net/api/sample.php. (This URL won't do anything in a browser; it requires an XML-RPC client.)