Force stl container size and declare it as a type

Question

I want to define a std::vector with 2 elements as a type, and export it. Something looking like:

template <class T>
using Vec2 = std::vector<T>(2);

• Is it possible to force the size of a container ?
• If it is, how can I declare it as a type and export it in the whole code when I include its declaration file?

Edit: A lot of interesting responses. Thanks to everyone, I will use a typedef struct because I don't really need to access container's member functions.

Answer 1

No. This is not possible because a std::vector<int> of size 2 has the same type as a std::vector<int> of size 42. Vectors are resizable, thats basically what makes them vectors and distinguishes them from std::array. For a container of fixed size 2 you can use arrays:

template <class T>
using Vec2 = std::array<T,2>;