last works on XBackTester ...

Libraries/x-saherelm.common.extensions.lib.mq5

@@ -570,6 +570,25 @@ double NormalizePrice(
     return result;
 }
 
+/**
+ * Normalize Chart Id ...
+ *
+ * @param  _chartId: ulong
+ *
+ * @return ( ulong )
+ */
+ulong NormalizeChartId(ulong _chartId = 0)
+{
+    //
+    if (_chartId <= 0)
+    {
+        _chartId = ChartID();
+    }
+
+    //
+    return _chartId;
+}
+
 //
 // END Normalizations ...
 //

Libraries/x-saherelm.x-trade.lib.mq5

@@ -4248,7 +4248,7 @@ int GetYoungest(
 
         //
         int iAge = GetAge(iItem);
-        if (iAge > 0 &&
+        if (iAge >= 0 &&
             (tmpAge == 0 || tmpAge > iAge))
         {
             //
@@ -4258,7 +4258,7 @@ int GetYoungest(
     }
 
     //
-    if (tmpAge > 0)
+    if (tmpAge >= 0)
     {
         //
         result = tmpAge;