gistfile1.cpp

enum class Type { TYPE1, TYPE2, TYPE3 };

class Object {
	
	using LiteralPtr = std::unique_ptr<const char[]>;
	
	Type m_type;
	LiteralPtr m_msg;

	static LiteralPtr make_str_copy(const char* str) {
		const size_t size = std::strlen(str) + 1;
		char* new_str = new char[size];
		std::memcpy(new_str, str, size); 
		return LiteralPtr{new_str};
	}
public:
	Object(Type type, const char* msg) :
		m_type{type}, m_msg{make_str_copy(msg)} { }

	// non-copyable	
	Object(const Object&) = delete;
	Object& operator=(const Object&) = delete;

	// move-only semantics
	Object(Object&& other) = default;
	Object& operator=(Object&& obj) = default;
	
	inline Type type() const { return m_type; }
	inline const char* msg() const { return m_msg.get() }
};

int main(int argv, char* argc[]) {
	std::vector<Object> src_objs;
	src_objs.reserve(3);
	src_objs.emplace_back( TYPE2, "1st message" );
	src_objs.emplace_back( TYPE1, "2nd message" );
	src_objs.emplace_back( TYPE1, "3rd message" );
}