templated method on T inside a templated class on TT : Is that possible/correct.
- by paercebal
I have a class MyClass which is templated on typename T. But inside, I want a method which is templated on another type TT (which is unrelated to T).
After reading/tinkering, I found the following notation:
template <typename T>
class MyClass
{
public :
template<typename TT>
void MyMethod(const TT & param) ;
} ;
For stylistic reasons (I like to have my templated class declaration in one header file, and the method definitions in another header file), I won't define the method inside the class declaration. So, I have to write it as:
template <typename T> // this is the type of the class
template <typename TT> // this is the type of the method
void MyClass<T>::MyMethod(const TT & param)
{
// etc.
}
I knew I had to "declare" the typenames used in the method, but didn't know how exactly, and found through trials and errors.
The code above compiles on Visual C++ 2008, but: Is this the correct way to have a method templated on TT inside a class templated on T?
As a bonus: Are there hidden problems/surprises/constraints behind this kind of code? (I guess the specializations can be quite amusing to write)
