Perl: the Markov chain saw | |
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Re^2: is_tainted functionby DrHyde (Prior) |
on Sep 21, 2007 at 10:42 UTC ( [id://640326]=note: print w/replies, xml ) | Need Help?? |
signal 0 is special. In that case, the return value is the number of processes that would have been signalled if you'd sent a valid signal number. In other words, it checks to see if process IDs exist.
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