Q$6.$ Wait

Solve textbook practice problem $8\mathrm{.}4$

Consider the following program:

$------------------------------$code$/$ecf$/$global$-$waitprob$1.$c

int main$()$

$\{$

int status;

pid$\_$t pid;

printf$("$Start

$")$;

pid $=$ Fork$()$;

printf$("\%$d

$",!$pid$)$;

if $($pid $==0)\{$

printf$("$Child

$")$;

$\}$

else if $(($waitpid$(-1,$ &status, $0)>0)$ &&

$($WIFEXITED$($status$)!=0))\{$

printf$("\%$d

$",$ WEXITSTATUS$($status$))$;

$\}$

printf$("$Stop

$")$;

exit$(2)$;

$\}$

$------------------------------$code$/$ecf$/$global$-$waitprob$1.$c

A$.$ How many output lines does this program generate?

B$.$ What is one possible ordering of these output lines?