--- a/include/DataTypeReader.h	Sat Jul 14 17:06:04 2018 +0200
+++ b/include/DataTypeReader.h	Sat Jul 14 17:10:01 2018 +0200
@@ -18,11 +18,6 @@
 
 	virtual string_t readString(std::istream &input);
 
-	virtual void writeValue(std::ostream& output, const T& value) = 0;
-
-	virtual void writeString(std::ostream& output, const string_t &stringValue);
-
-	virtual T toValue(const string_t &stringValue) = 0;
 	virtual string_t toString(const T& value) = 0;
 
 };