Re: Is there typedef template?

Hi,

I'm wondering if it is possible to define typedef template? For
example, I have template class A. I want give it an alias such as B.

The problem comes from refactoring the code. Suppost A is not a
template class. After refactoring, I decide to add a template
parameter to it.

But the original following code need to be updated as well.
typedef A B;

However, I don't find any easy way to change such code.

Thanks,
Peng

#include <iostream>

template <typename T>
class A {
  public:
    A() : _a(10.5) { }
    T the_a() const { return _a; }
  private:
    T _a;
};

typedef int T;

template <typename T>
typedef A<T> B; // want to define a typedef for a class template

int main() {
  T t(10);
  std::cout << t << std::endl;

  A_T<int> a(10);
  std::cout << a.the_a() << std::endl;
}