This example shows how to handle the xsi:type attributes when it is used on root elements. For general coverage of XML Schema polymorphism handling in the C++/Parser mapping see the polymorphism example. The example consists of the following files: supermen.xsd XML Schema which describes the "supermen" instance documents. person.xml superman.xml batman.xml Sample XML instance documents. supermen-pskel.hxx supermen-pskel.cxx Parser skeletons generated by the XSD compiler from supermen.xsd. Note the use of the --generate-polymorphic command line option. supermen-pimpl.hxx supermen-pimpl.cxx Parser implementations that print the XML data to STDOUT. driver.cxx Driver for the example. It implements a custom document parser that determines which XML Schema type is being parsed and uses the corresponding parser implementation. The driver first constructs a parser instance from all the individual parsers found in supermen-pimpl.hxx. In then invokes this parser instance to parse the input file. To run the example on the sample XML instance documents simply execute: $ ./driver person.xml $ ./driver superman.xml $ ./driver batman.xml