hat's what i thought
root@debian-amd64:~/test# ps
  PID TTY          TIME CMD
 1932 ttyS0    00:00:00 login
 1934 ttyS0    00:00:06 bash
 2785 ttyS0    00:00:00 proc_test2
 2786 ttyS0    00:00:00 proc_test2
 2801 ttyS0    00:00:00 ps


proc_test2 is main.c
2789 (process_ancesto):
	state: 0
	uid: 0
	nvcsw: 0
	nivcsw: 6
	num_children: 0
	num_siblings: 2
1934 (bash):
	state: 1
	uid: 0
	nvcsw: 749
	nivcsw: 2294
	num_children: 2
	num_siblings: 1
my guess is that process_ancestor is the child of bash
because i run it from bash
by that logic, main.c is also a child of bash
why would the forked process created in main.c not also be a child of bash?
and therefore a sibling of process_ancestor?