Moved examples.

Added intrusive and non-intrusive versions of packing and unpacking examples.

example/cpp03/custom.cpp

@@ -0,0 +1,58 @@
+#include <msgpack.hpp>
+#include <string>
+#include <iostream>
+
+class old_class {
+public:
+    old_class() : value("default") { }
+
+    std::string value;
+
+    MSGPACK_DEFINE(value);
+};
+
+class new_class {
+public:
+    new_class() : value("default"), flag(-1) { }
+
+    std::string value;
+    int flag;
+
+    MSGPACK_DEFINE(value, flag);
+};
+
+int main(void)
+{
+    {
+        old_class oc;
+        new_class nc;
+
+        msgpack::sbuffer sbuf;
+        msgpack::pack(sbuf, oc);
+
+        msgpack::unpacked result;
+        msgpack::unpack(result, sbuf.data(), sbuf.size());
+        msgpack::object obj = result.get();
+
+        obj.convert(&nc);
+
+        std::cout << obj << " value=" << nc.value << " flag=" << nc.flag << std::endl;
+    }
+
+    {
+        new_class nc;
+        old_class oc;
+
+        msgpack::sbuffer sbuf;
+        msgpack::pack(sbuf, nc);
+
+        msgpack::unpacked result;
+        msgpack::unpack(result, sbuf.data(), sbuf.size());
+        msgpack::object obj = result.get();
+
+        obj.convert(&oc);
+
+        std::cout << obj << " value=" << oc.value << std::endl;
+    }
+}
+