C++ template string concatenation

Question

I\'m trying to define some variadic template like that:

typedef const char CCTYPE[];
template struct StringConcat { ... };
         


        

Answer 1

You can solve the problem of making your std::cout << StringConcat work.

template struct StrBag {};
template void StringConcat(StrBag) {}

std::ostream &print(std::ostream &os) { 
  return os; 
}

template 
std::ostream &print(std::ostream &os, CCTYPE t1, T ...t) { 
  os << t1; 
  return print(os, t...);
}

template
std::ostream &operator<<(std::ostream &os, void(StrBag)) {
  return print(os, Str...) << std::endl;
}

Now you can say

char foo[] = "foo"; char bar[] = "bar";
int main() {
  std::cout << StringConcat << std::endl;
}

Hope it helps.