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Re: Pass an optional parameter to a subroutine

by robartes (Priest)
on Sep 15, 2006 at 08:17 UTC ( #573069=note: print w/replies, xml ) Need Help??

in reply to Pass an optional parameter to a subroutine

You're being bitten by the fact that 0 is false, so if you pass 0 in $db_write, the shift || 1 sees false || 1 and you get 1.

You will probably want to explicitely check for definedness instead:

my $ref_mail = shift; my $db_write = shift; # If $db_write is defined, use that, otherwise default to 1 $db_write = defined($db_write)?$db_write:1;


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Re^2: Pass an optional parameter to a subroutine
by ocs (Monk) on Sep 15, 2006 at 08:52 UTC
    Wow, thank you guys. That was really fast & you got my problem solved. Great community :)

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[davido]: /var/run/utmp is 664 i think.
[tye]: Note that my "man getlogin" says that it uses stdin when it should use /dev/tty (calling a glibc bug). But that does not appear to be the case when I test it. But maybe Perl's getlogin() is not using glibc's getlogin().
[oiskuu]: well, run a strace and see what the getlogin does for you.... As I said. SELinux probably has those security labels. But not regular linux.
[tye]: for example, read https://unix. questions/146138/ loginuid-should-be -allowed-to-change -or-not-mutable-or -not
[tye]: I'm not using SELinux and it certainly appears to disagree with you. shrug
[tye]: Since you brought up /proc, oiskuu, I didn't see you respond to my suggestion of 'loginuid'. Does your /proc not have such?

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