--- a/src/query/history.h
+++ b/src/query/history.h
@@ -16,7 +16,7 @@
*/
#ifndef _HISTORY_H_INCLUDED_
#define _HISTORY_H_INCLUDED_
-/* @(#$Id: history.h,v 1.5 2006-09-11 12:05:39 dockes Exp $ (C) 2004 J.F.Dockes */
+/* @(#$Id: history.h,v 1.6 2006-10-02 12:33:13 dockes Exp $ (C) 2004 J.F.Dockes */
/**
* Dynamic configuration storage
@@ -46,6 +46,7 @@
class HistoryEntry {
public:
+ virtual ~HistoryEntry() {}
virtual bool decode(const string &value) = 0;
virtual bool encode(string& value) = 0;
virtual bool equal(const HistoryEntry &other) = 0;