--- a/sources/md5.h	Wed Jan 27 13:17:11 2021 +0200
+++ b/sources/md5.h	Wed Jan 27 14:04:53 2021 +0200
@@ -1,7 +1,9 @@
 #pragma once
+#include <string>
 #include "basics.h"
 BEGIN_ZFC_NAMESPACE
 
 void CalculateMD5 (unsigned char const *buffer, int length, char *checksum);
+std::string md5(const char* buffer);
 
 END_ZFC_NAMESPACE