Index: include/rapidjson/genericreadstream.h
===================================================================
--- include/rapidjson/genericreadstream.h	(revision 0)
+++ include/rapidjson/genericreadstream.h	(working copy)
@@ -0,0 +1,44 @@
+#ifndef RAPIDJSON_GENERICREADSTREAM_H_
+#define RAPIDJSON_GENERICREADSTREAM_H_
+
+#include "rapidjson.h"
+#include <iostream>
+
+namespace rapidjson {
+
+//! Wrapper of std::istream for input.
+class GenericReadStream {
+public:
+    typedef char Ch;    //!< Character type (byte).
+
+    //! Constructor.
+    /*!
+        \param is Input stream.
+    */
+    GenericReadStream(std::istream& is) : is_(is) {
+    }
+
+    Ch Peek() const {
+        return static_cast<char>(is_.peek());
+    }
+
+    Ch Take() {
+        return static_cast<char>(is_.get());
+    }
+
+    size_t Tell() const {
+        return (int)is_.tellg();
+    }
+
+    // Not implemented
+    void Put(Ch c) { RAPIDJSON_ASSERT(false); }
+    void Flush() { RAPIDJSON_ASSERT(false); }
+    Ch* PutBegin() { RAPIDJSON_ASSERT(false); return 0; }
+    size_t PutEnd(Ch*) { RAPIDJSON_ASSERT(false); return 0; }
+
+    std::istream& is_;
+};
+
+} // namespace rapidjson
+
+#endif // RAPIDJSON_GENERICREADSTREAM_H_
Index: include/rapidjson/genericwritestream.h
===================================================================
--- include/rapidjson/genericwritestream.h	(revision 0)
+++ include/rapidjson/genericwritestream.h	(working copy)
@@ -0,0 +1,56 @@
+#ifndef RAPIDJSON_GENERICWRITESTREAM_H_
+#define RAPIDJSON_GENERICWRITESTREAM_H_
+
+#include "rapidjson.h"
+#include <iostream>
+
+namespace rapidjson {
+
+//! Wrapper of std::ostream for output.
+class GenericWriteStream {
+public:
+    typedef char Ch;    //!< Character type. Only support char.
+
+    //! Constructor
+    /*!
+        \param os Output stream.
+    */
+    GenericWriteStream(std::ostream& os) : os_(os) {
+    }
+
+    void Put(char c) {
+        os_.put(c);
+    }
+
+    void PutN(char c, size_t n) {
+        for (size_t i = 0; i < n; ++i) {
+            Put(c);
+        }
+    }
+
+    void Flush() {
+        os_.flush();
+    }
+
+    size_t Tell() const {
+        return (int)os_.tellp();
+    }
+
+    // Not implemented
+    char Peek() const { RAPIDJSON_ASSERT(false); }
+    char Take() { RAPIDJSON_ASSERT(false); }
+    char* PutBegin() { RAPIDJSON_ASSERT(false); return 0; }
+    size_t PutEnd(char*) { RAPIDJSON_ASSERT(false); return 0; }
+
+private:
+    std::ostream& os_;
+};
+
+template<>
+inline void PutN(GenericWriteStream& stream, char c, size_t n) {
+    stream.PutN(c, n);
+}
+
+} // namespace rapidjson
+
+#endif // RAPIDJSON_GENERICWRITESTREAM_H_