1ebc204a   
   From: schaub.johannes@googlemail.com   
      
   Alok wrote:   
      
   > I was just wondering, How far does the book:   
   >   
   > C++ Templates: The complete Guide   
   > by David Vandevoorde & Nicolai Josutils,   
   >   
   > hold good in context of the the new C++11 standard? What are the   
   > relevant areas which will need an update, or don't hold good anymore   
   > within the modifications that will come through in C++11?   
   >   
      
   It would be good to extend it with alias templates and the new   
   enumerations,   
   including those defined out-of-class:   
      
        template   
        struct A {   
          enum B : int;   
        };   
      
        template   
        enum A::B : int {   
          X, Y, Z   
        };   
      
   In this case, we introduced members X, Y and Z into class "A" after its   
   complete body has been seen, which is something completely new in C++11.   
   This adds some new complications, like what happens if you name "A::X"   
   before the definition of B has been seen and what happens to a scoped   
   enumeration's enumerators when the enclosing class is implicitly   
   instantiated:   
      
        template   
        struct A {   
          enum class B { X = sizeof(T) };   
        };   
      
        A a;   
      
   C++11 specifies that instantiation of "X" is not done in this example, such   
   that this code is well-formed.   
      
      
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