c++ - 本身就是模板的特化

Question

我有一个模板类，我有一些专长。
但下一个特化是模板本身。你如何指定这个:

template<typename T>
class Action
{
    public: void doStuff()  { std::cout << "Generic\n"; }
}

// A specialization for a person
template<>
class Action<Person>
{
    public: void doStuff()  { std::cout << "A Person\n";}
}


// I can easily specialize for vectors of a particular type.
// But how  do I change the following so that it works with all types of vector.
// Not just `int`
template<>
class Action<std::vector<int> >
{
    public: void doStuff()  { std::cout << "A Generic Vector\n";}
}

Answer 1

平凡的偏特化？

template <typename T>
class Action<std::vector<T>> {
public:
  void doStuff() { std::cout << "A Generic Vector\n"; }
};