fix

Include/Generic/Internal/EqualFunction.mqh

@@ -0,0 +1,26 @@
+//+------------------------------------------------------------------+
+//|                                                EqualFunction.mqh |
+//|                   Copyright 2016-2017, MetaQuotes Software Corp. |
+//|                                             https://www.mql5.com |
+//+------------------------------------------------------------------+
+#include <Generic\Interfaces\IEqualityComparable.mqh>
+//+------------------------------------------------------------------+
+//| Indicates whether x object is equal y object of the same type.   |
+//+------------------------------------------------------------------+
+template<typename T>
+bool Equals(T x,T y)
+  {
+//--- try to convert to equality comparable object  
+   IEqualityComparable<T>*equtable=dynamic_cast<IEqualityComparable<T>*>(x);
+   if(equtable)
+     {
+      //--- use specied equality compare method
+      return equtable.Equals(y);
+     }
+   else
+     {
+      //--- use default equality comparer operator
+      return(x==y);
+     }
+  }
+//+------------------------------------------------------------------+