fixed test

mo/test/t-moFitnessVarianceStat.cpp

@@ -13,11 +13,25 @@
 typedef eoReal< eoMinimizingFitness > EOT;
 typedef moRealNeighbor< EOT > Neighbor;
 
+double objective_function(const EOT & sol)
+{
+    double sum = 0;
+
+    for ( size_t i = 0; i < sol.size(); ++i )
+	{
+	    sum += sol[i] * sol[i];
+	}
+
+    return sum;
+}
+
 int main(int ac, char** av)
 {
     //moNeighborhoodStat<Neighbor> nhStat
     moFitnessVarianceStat<EOT> stat;
+    eoEvalFuncPtr< EOT, double > eval( objective_function );
     EOT solution(2, 5);
+    eval(solution);
     stat(solution);
     //assert(stat.value() == 1);
     std::cout << "ok " << stat.value() << std::endl;