Perl, waitpid() exit code returning wrong value?
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by Mike
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Published on 2010-05-25T22:34:09Z
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2010/05/25
22:41 UTC
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Consder this trivial example of fork()ing then waiting for a child to die in Perl
#!/usr/bin/perl
use strict;
use warnings;
if (fork() == 0) {
exit(1);
}
waitpid(-1,0);
print $?;
$perl test.pl
256
I suspect the values of are being shifted upwards because when I do exit(2) in the child, the output becomes 512
I can't seem to find this documented in perl's waitpid. Is this a bug on my system or am I doing something wrong? (btw, my OS is solaris 10)
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