For, root.c:6: warning: incompatible implicit declaration of built-in function ‘exit’
If you check the manpage of exit ("$ man exit"), you'll find the
synopsis to say,
SYNOPSIS
#include <stdlib.h>
void exit(int status);
Which means that you must include stdlib.h to use exit().
Do that to get rid of the warning.
SB
-- l...@iitd - http://tinyurl.com/ycueutm
