1.1 --- a/src/contrib/stats/data-calculator.h	Thu Nov 12 13:19:35 2009 +0100
     1.2 +++ b/src/contrib/stats/data-calculator.h	Thu Nov 12 14:08:51 2009 +0100
     1.3 @@ -34,6 +34,12 @@
     1.4    class StatisticalSummary {
     1.5  	  public:
     1.6  	    /**
     1.7 +	     * Destructor
     1.8 +	     */
     1.9 +	    virtual ~StatisticalSummary () 
    1.10 +	    {
    1.11 +	    }
    1.12 +	    /**
    1.13  	     * Returns the number of the observations.
    1.14  	     */
    1.15  	    virtual long getCount() const = 0;