/tmp/x.cxx

tmpx.cxx.cpp

#include <array>
#include <iomanip>
#include <iostream>
#include <vector>

using namespace std;

template<typename C>
void test()
{
    C c{42, 42, 42};
    cout << &c << "+" << sizeof(c) << endl;
    for (auto &e : c) {
        cout << "  " << &e << "+" << sizeof(e) << endl;
    }
}

int main()
{
    test<vector<int>>();
    //test<array<int, 3>>();
}