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5. A Sample API: sumAndDifference

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:

sum

The sum of the two integers.

difference

The difference between the two integers.

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.)