Variant in C++

var.cc

#include <iostream>
#include <string>
#include <stdexcept>

class cc {
	public:
	cc() { std::cout << "hi" << std::endl; }
	~cc() { std::cout << "bye" << std::endl; }
};

enum atype { S };

class atom {
	public:
		atom(atype a): type(a) {
			ptr = new cc;
		}

		cc* get_str() { 
			return reinterpret_cast<cc*>(ptr); }
		~atom() { 
			delete reinterpret_cast<cc*>(ptr); }

	private:
		atype type;
		void* ptr = nullptr;
};



int main()
{
	try {
		atom a(S);
		throw std::runtime_error("Opps");
	} catch(...) {
		std::cout << "caught exception\n" ;
	}

	return 0;
}