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diff --git a/xsd-examples/cxx/tree/compression/driver.cxx b/xsd-examples/cxx/tree/compression/driver.cxx
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+// file : cxx/tree/compression/driver.cxx
+// copyright : not copyrighted - public domain
+
+#include <memory> // std::unique_ptr
+#include <fstream>
+#include <iostream>
+
+#include <xercesc/util/PlatformUtils.hpp>
+
+#include "library.hxx"
+
+#include "compressed-input-source.hxx"
+#include "compressed-format-target.hxx"
+
+using namespace std;
+
+int
+main (int argc, char* argv[])
+{
+ if (argc != 2)
+ {
+ cerr << "usage: " << argv[0] << " library.xml.gz" << endl;
+ return 1;
+ }
+
+ int r (0);
+
+ // We need to initialize the Xerces-C++ runtime because we are
+ // using the Xerces-C++ input/output interfaces.
+ //
+ xercesc::XMLPlatformUtils::Initialize ();
+
+ try
+ {
+ using namespace library;
+
+ // Read in the XML file and obtain its object model.
+ //
+ ifstream ifs;
+ ifs.exceptions (ifstream::badbit | ifstream::failbit);
+ ifs.open (argv[1], ifstream::in | ifstream::binary);
+
+ compressed_input_source cis (ifs, compressed_input_source::gzip, argv[1]);
+
+ unique_ptr<catalog> c (
+ catalog_ (cis, xml_schema::flags::dont_initialize));
+
+
+ // Let's print what we've got.
+ //
+ for (catalog::book_const_iterator bi (c->book ().begin ());
+ bi != c->book ().end ();
+ ++bi)
+ {
+ cerr << endl
+ << "ID : " << bi->id () << endl
+ << "ISBN : " << bi->isbn () << endl
+ << "Title : " << bi->title () << endl
+ << "Genre : " << bi->genre () << endl;
+
+ for (book::author_const_iterator ai (bi->author ().begin ());
+ ai != bi->author ().end ();
+ ++ai)
+ {
+ cerr << "Author : " << ai->name () << endl;
+ cerr << " Born : " << ai->born () << endl;
+
+ if (ai->died ())
+ cerr << " Died : " << *ai->died () << endl;
+
+ if (ai->recommends ())
+ cerr << " Recommends : " << (*ai->recommends ())->title () << endl;
+ }
+
+ cerr << "Available : " << std::boolalpha << bi->available () << endl;
+ }
+
+ // Prepare namespace mapping and schema location information.
+ //
+ xml_schema::namespace_infomap map;
+
+ map["lib"].name = "http://www.codesynthesis.com/library";
+ map["lib"].schema = "library.xsd";
+
+ ofstream ofs;
+ ofs.exceptions (ofstream::badbit | ofstream::failbit | ofstream::eofbit);
+ ofs.open ("out.xml.gz", ofstream::out | ofstream::binary);
+
+ compressed_format_target cft (ofs, compressed_format_target::gzip);
+
+ // Write it out.
+ //
+ catalog_ (cft, *c, map, "UTF-8", xml_schema::flags::dont_initialize);
+
+ // Write out the compression stream trailer. If we don't do this
+ // explicitly, it will be done automatically in the cft's destructor
+ // but then any exceptions that might be throws will be ignored.
+ //
+ cft.close();
+ }
+ catch (const xml_schema::exception& e)
+ {
+ cerr << e << endl;
+ r = 1;
+ }
+ catch (const compression_failure& e)
+ {
+ cerr << "compression failure: " << e.message () << endl;
+ r = 1;
+ }
+ catch (const decompression_failure& e)
+ {
+ cerr << "decompression failure: " << e.message () << endl;
+ r = 1;
+ }
+ catch (const ios_base::failure&)
+ {
+ cerr << "file open or read/write failure" << endl;
+ r = 1;
+ }
+
+ xercesc::XMLPlatformUtils::Terminate ();
+ return r;
+}