Fix data propagation in converter (in calculator example) (paceholder#217)

Author: paceholder

examples/calculator/Converters.cpp

@@ -6,7 +6,6 @@
 #include "IntegerData.hpp"
 
 
-
 std::shared_ptr<NodeData>
 DecimalToIntegerConverter::
 operator()(std::shared_ptr<NodeData> data)
@@ -18,6 +17,10 @@ operator()(std::shared_ptr<NodeData> data)
   {
     _integer = std::make_shared<IntegerData>(numberData->number());
   }
+  else
+  {
+    _integer.reset();
+  }
 
   return _integer;
 }
@@ -34,7 +37,10 @@ operator()(std::shared_ptr<NodeData> data)
   {
     _decimal = std::make_shared<DecimalData>(numberData->number());
   }
+  else
+  {
+    _decimal.reset();
+  }
 
   return _decimal;
 }
-