#include <algorithm>
#include <memory>
#include <utility>
#include <iostream>
#include <vector>
#include <functional>
using namespace std;
struct A {
A() {}
A(A&&) noexcept {}
std::function<void (int*)> func;
A(const A&) {}
};
class ABC
{
public:
ABC()
{}
private:
std::vector<std::unique_ptr<int>> up;
A a;
};
int main()
{
ABC a;
std::vector<ABC> vec;
vec.reserve(1);
}