next easing of PIChunkStream::extract()

doc/examples/pichunkstream.cpp

@@ -47,3 +47,21 @@ while (!cs2.atEnd()) {
 }
 piCout << i << str << f << s.i << s.f << s.s;
 //! [read]
+
+//! [write_new]
+PIByteArray & operator <<(PIByteArray & s, const S & value) {
+	PIChunkStream cs;
+	cs.add(1, value.i).add(2, value.f).add(3, value.s);
+	s << cs.data();
+	return s;
+}
+//! [write_new]
+//! [read_new]
+PIByteArray & operator >>(PIByteArray & s, S & value) {
+	PIChunkStream cs;
+	if (!cs.extract(s)) return s;
+	cs.readAll();
+	cs.get(1, value.i).get(2, value.f).get(3, value.s);
+	return b;
+}
+//! [read_new]