diff --git a/cpp/msgpack/object.hpp b/cpp/msgpack/object.hpp
index a094c569..df1079b4 100644
--- a/cpp/msgpack/object.hpp
+++ b/cpp/msgpack/object.hpp
@@ -128,6 +128,9 @@ private:
 bool operator==(const object x, const object y);
 bool operator!=(const object x, const object y);
 
+template <typename T>
+bool operator==(const object x, const T& y);
+
 std::ostream& operator<< (std::ostream& s, const object o);
 
 
@@ -207,6 +210,14 @@ inline packer<Stream>& operator<< (packer<Stream>& o, const T& v)
 inline bool operator!=(const object x, const object y)
 { return !(x == y); }
 
+template <typename T>
+inline bool operator==(const object x, const T& y)
+try {
+	return x == object(y);
+} catch (msgpack::type_error&) {
+	return false;
+}
+
 
 inline object::implicit_type object::convert() const
 {
diff --git a/cpp/msgpack/type/string.hpp b/cpp/msgpack/type/string.hpp
index 796603f6..8ca27242 100644
--- a/cpp/msgpack/type/string.hpp
+++ b/cpp/msgpack/type/string.hpp
@@ -48,6 +48,13 @@ inline void operator<< (object::object_zone& o, const std::string& v)
 	memcpy(ptr, v.data(), v.size());
 }
 
+inline void operator<< (object& o, const std::string& v)
+{
+	o.type = type::RAW;
+	o.via.raw.ptr = v.data();
+	o.via.raw.size = v.size();
+}
+
 
 }  // namespace msgpack
 
diff --git a/cpp/object.cpp b/cpp/object.cpp
index a7adb717..626d1861 100644
--- a/cpp/object.cpp
+++ b/cpp/object.cpp
@@ -103,6 +103,9 @@ bool operator==(const object x, const object y)
 	case type::NEGATIVE_INTEGER:
 		return x.via.i64 == y.via.i64;
 
+	case type::DOUBLE:
+		return x.via.dec == y.via.dec;
+
 	case type::RAW:
 		return x.via.raw.size == y.via.raw.size &&
 			memcmp(x.via.raw.ptr, y.via.raw.ptr, x.via.raw.size) == 0;