Example uses std::string Writer overload if RAPIDJSON_HAS_STDSTRING set.

example/serialize/serialize.cpp

@@ -19,8 +19,11 @@ protected:
     void Serialize(Writer& writer) const {
         // This base class just write out name-value pairs, without wrapping within an object.
         writer.String("name");
+#ifdef RAPIDJSON_HAS_STDSTRING
+        writer.String(name_);
+#else
         writer.String(name_.c_str(), (SizeType)name_.length()); // Supplying length of string is faster.
-
+#endif
         writer.String("age");
         writer.Uint(age_);
     }
@@ -42,7 +45,11 @@ public:
         writer.StartObject();
         
         writer.String("school");
+#ifdef RAPIDJSON_HAS_STDSTRING
+        writer.String(school_);
+#else
         writer.String(school_.c_str(), (SizeType)school_.length());
+#endif
 
         writer.String("GPA");
         writer.Double(GPA_);