C Multi-Type struct implementation with run-time type information

rtti_mt.h

//rtti_mt.h
//Run Time Type Information enabled Multi Type variable implementation
//Author: Gydo194
//2207181714

#pragma once

struct rtti_mt_t;
typedef struct rtti_mt_t rtti_mt_t;

struct rtti_mt_t
{
	enum
	{
		INT,
		DOUBLE,
		CHAR,
		STRING
	} type;

	union
	{
		int int_value;
		double double_value;
		char char_value;
		char *string_value;
	} value;
};