Is sizeof… allowed in template arguments for specialization?

Question

I\'m trying to do something along the lines of this using GCC 4.7 snapshot:

template 
struct foo { 
  static const int value = 0;
};
         


        

Answer 1

I'm going to assume this is a compiler issue after reading this post.

A partially specialized non-type argument expression shall not involve a template parameter of the partial specialization except when the argument expression is a simple identifier.

Which is being disputed here.

GCC is either incorrectly unpacking the parameter pack, or evaluating sizeof prematurely.

Response to bug report I filed may be helpful.