ft_recursive_factorial

#include <unistd.h>

int	ft_recursive_factorial(int nb)
{
	int	num;

	num = nb;
	if (num < 0)
		return (0);
	if (num == 0)
		return (1);
	if (num == 1)
		return (num);
	return (num * ft_recursive_factorial(nb - 1));
}