Variadic templates for vector constructor

#include <type_traits>
#include <utility>

using namespace std;

template<typename T, typename... Args>
class VecBase
{
public:
    static constexpr std::size_t size = sizeof...(Args);
private:
    T v[size];

public:
    VecBase(Args... x) : v{x...} {}
};

template<typename T, int rem, typename... Args>
class VecHelper
{
public:
    typedef typename VecHelper<T, rem - 1, T, Args...>::type type;
};

template<typename T, typename... Args>
class VecHelper<T, 0, Args...>
{
public:
    typedef VecBase<T, Args...> type;
};

template<typename T, int N>
using Vec = typename VecHelper<T, N>::type;

int main()
{
    Vec<float, 3> v(1.0f, 2.0, 3);
}