clarify Builders
diff --git a/include/json/writer.h b/include/json/writer.h
index 4b8a89c..871287f 100644
--- a/include/json/writer.h
+++ b/include/json/writer.h
@@ -105,9 +105,10 @@
std::string indentation_;
StreamWriterBuilder();
+ virtual ~StreamWriterBuilder();
/// Do not take ownership of sout, but maintain a reference.
- StreamWriter* newStreamWriter(std::ostream* sout) const;
+ virtual StreamWriter* newStreamWriter(std::ostream* sout) const;
};
/** \brief Build a StreamWriter implementation.