diff -r 20ca0a6be175 -r 9b6a0daedfc0 sources/network/ipaddress.h
--- a/sources/network/ipaddress.h	Wed Jan 27 14:04:53 2021 +0200
+++ b/sources/network/ipaddress.h	Wed Jan 27 14:05:39 2021 +0200
@@ -51,10 +51,10 @@
 
 	class StringParseError : public std::exception
 	{
-		String m_message;
+		std::string m_message;
 
 	public:
-		StringParseError (String message) :
+		StringParseError (std::string message) :
 			m_message (message) {}
 
 		const char* what() const throw()
@@ -73,15 +73,15 @@
 	bool compare (const IPAddress& other) const;
 	unsigned char octet (int n) const;
 	void set_octet (int n, unsigned char oct);
-	String to_string (WithPort withport = NO_PORT) const;
+	std::string to_string (WithPort withport = NO_PORT) const;
 	sockaddr_in to_sockaddr_in() const;
 	bool operator< (const IPAddress& other) const;
 	bool operator== (const IPAddress& other) const { return compare (other); }
 	bool operator!= (const IPAddress& other) const { return not compare (other); }
 	unsigned char operator[] (int n) const { return octet (n); }
 
-	static IPAddress from_string (String input);
-	static IPAddress resolve (String node);
+	static IPAddress from_string (std::string input);
+	static IPAddress resolve (std::string node);
 };
 
 END_ZFC_NAMESPACE