How to compare all the elements in a list?

In managed C++, you could do that as follows:

   bool areEqual = true;

   if (list->Count > 0)
   {
      String ^ first = list[0];
      for (int i = 1; i < list->Count; i++)
      { 
          if (list[i] != first)
          {
             areEqual = false;
             break;
          }
      }
   }

   if(areEqual)
   {
       // do something
   }
   else
   {
       // do something else
   }