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diff --git a/examples/cxx/hybrid/compositors/driver.cxx b/examples/cxx/hybrid/compositors/driver.cxx
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+++ b/examples/cxx/hybrid/compositors/driver.cxx
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+// file      : examples/cxx/hybrid/compositors/driver.cxx
+// author    : Boris Kolpackov <boris@codesynthesis.com>
+// copyright : not copyrighted - public domain
+
+#include "compositors.hxx"
+
+int
+main (int, char*[])
+{
+  // Simple choice.
+  //
+  simple_choice sc;
+
+  sc.a (123); // Automatically sets arm to a_tag.
+
+  switch (sc.choice_arm ())
+  {
+  case simple_choice::a_tag:
+    {
+      sc.a ()++;
+      break;
+    }
+  case simple_choice::b_tag:
+    {
+      // The b element is optional so we first need to check
+      // if it is present.
+      //
+      if (sc.b_present ())
+      {
+        sc.b_present (false);
+      }
+
+      break;
+    }
+  case simple_choice::c_tag:
+    {
+      // The c element is a sequence.
+      //
+      simple_choice::c_sequence& s = sc.c ();
+
+      for (simple_choice::c_iterator i = s.begin (); i != s.end(); ++i)
+      {
+        *i = !*i;
+      }
+
+      break;
+    }
+  }
+
+
+  // Nested choice.
+  //
+  nested_choice nc;
+
+  // Initialize the choice with the 'sequence' arm.
+  //
+  nc.choice_present (true);
+  nested_choice::choice_type& c = nc.choice ();
+  c.choice_arm (nested_choice::choice_type::sequence_tag);
+  c.sequence ().b (123);
+  c.sequence ().c (true);
+
+  nc.d (456);
+
+
+  // Nested sequence.
+  //
+  nested_sequence ns;
+  nested_sequence::sequence_sequence& s = ns.sequence ();
+
+  for (int i = 0; i < 10; ++i)
+  {
+    nested_sequence::sequence_type x;
+    x.a (i);
+
+    if (i % 2)
+    {
+      // Initialize the nested sequence.
+      //
+      x.sequence1_present (true);
+      x.sequence1 ().b (i);
+      x.sequence1 ().c (true);
+    }
+
+    s.push_back (x);
+  }
+
+  return 0;
+}