test.cpp

#include <iostream>
#include <vector>
#include <variant>
#include <functional>

struct Foo
{
	int handle = {};
};

struct Bar
{
	int x;
	int y;
};

class Food
{
public:
	Food();
};

struct Meow
{
	Food* food;
	Bar thing;
};

static std::vector<std::variant<Foo, Bar, Meow>> thing;

Food::Food()
{
	thing.push_back(Foo());
}

int main()
{
	thing.push_back(Foo());
	thing.push_back(Bar());
	thing.push_back(Meow());

	Meow& x = std::get<Meow>(thing[2]);
	x.food = new Food();
	x.thing = Bar();
	x.thing.x = 1;
	Food* kitty = std::get<Meow>(thing[2]).food;
	std::cout << "Hello World!\n";
	std::cout << static_cast<void*>(kitty);
}