#include <vector>
#include<iostream>

using namespace std;

int ctor = 0;
int dtor = 0;

struct test_vector {
    char const* _name;
    test_vector()
        : _name{ "" }
    {
        std::cout << "Default constructor " << _name << std::endl;
    }
    explicit test_vector(const char* name)
        : _name{ name }
    {
        std::cout << "Explicit constructor " << _name << std::endl;
    }


    test_vector(test_vector& oth)
        : _name{ oth._name }
    {
        std::cout << "Copy constructor " << _name << std::endl;
    }
    test_vector(test_vector&& oth)
        : _name{ oth._name }
    {
        std::cout << "Move constructor " << _name << std::endl;
        oth._name = "null";
    }
    ~test_vector()
    {
        std::cout << "Destructor " << _name << std::endl;
    }
    auto operator=(const test_vector& oth) -> test_vector &
    {
        _name = oth._name;
        std::cout << "copy assignment " << _name << std::endl;
        return *this;
    }
    auto operator=(test_vector&& oth) -> test_vector &
    {
        _name = oth._name;
        oth._name = "null";
        std::cout << "move assignment " << _name << std::endl;
        return *this;
    }
};
auto main() -> int
{
    auto v = std::vector<test_vector>{};
    v.emplace_back("new1");
    v.emplace_back("new2");
    v.emplace_back("new3");
    v.emplace_back("new4");
    v.emplace_back("new5");
    return 0;
}