An example object I created

object.c

#include <stdio.h>
//#include <unistd.h>
#include "lib/stdfn.h"

typedef struct car {
	char *color;
	char *size;
	int year;
} *car_t;

car_t newCar(char *color, char *size, int year)
{
	car_t car = malloc(sizeof(*car));
	car->color = color;
	car->size = size;
	car->year = year;
	return car;
}

char* carColor(car_t car)
{
	return car->color;
}

int main(int argc, char *argv[]) {
	
	car_t toyota = newCar("red", "big", 2000);
	char *toyotaColor = carColor(toyota);
	printf("%s", toyotaColor);
	return 0;
}