/**
 * Outputs the Collatz sequence in the child process.
 *
 * exercise 3.21
 *
 */

#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>

#define is_even(N) ( ((N % 2) == 0) ? 1 : 0)

int main(int argc, char *argv[])
{
pid_t pid;
int n;

	/* just shows how to run the program */
	if (argc == 1) {
		fprintf(stderr,"Usage: ./a.out <starting value>\n");
		
		return -1;
	}

	n = atoi(argv[1]);

	/* run an instance of a fork */

/* add a check to see if the OS was unable to create the child /*

/* 
	if pid ==0 (we're in the child)  , do what ?
     1. print the original number
     2. While we haven't reached 1
		if even divide by to and resent it to this
           if odd, mult by 3 and add 1
	3. print the numbers as they are made
	
	if not child (parent) what should we do?
	


*/

	return 0;
}