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Re^2: Why Perl boolean expression sometimes treated as lvalue?

by Anonymous Monk
on Feb 08, 2013 at 13:22 UTC ( #1017815=note: print w/replies, xml ) Need Help??

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  1. or download this
    $ perl -MO=Deparse,-p -le " $a= 1 && 2; print $a; "
    BEGIN { $/ = "\n"; $\ = "\n"; }
    ...
    Can't modify logical and (&&) in scalar assignment at -e line 1, near 
    +"3;"
    -e had compilation errors.
    (($a && $b) = 3);
    
  2. or download this
    
    2012         /* FALL THROUGH */
    ...
    2024                         ? "non-lvalue subroutine call"
    2025                         : OP_DESC(o))),
    2026                      type ? PL_op_desc[type] : "local"));
    

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[Your Mother]: What a stupid, yet seductive super power. Control of biting insects.
[oiskuu]: Don't you think it's disturbing that the washing machine manual would say not to start it with pets inside?
[oiskuu]: So, how long did it take you to grow up?
[oiskuu]: Have you ever had your temperature taken from the other end?
[marto]: I read about a case where people were at a launderette, or whatever they're called in the US, and as a joke, put their toddler in with the washing, then closed the door
[Your Mother]: (Work in progress.)
[marto]: unaware that the model in question started the cycle automatically, provided the money/token had already been provided
[marto]: CCTV footage of the joke gone wrong is used in educational materials now IIRC
[ambrus]: oiskuu: definitely not silly. have you ever tried to remove cat hair or dog hair from clothes? for many clothes, it's pretty hard, and running the washing machine with a cat inside would get the hair on everything.
[oiskuu]: YM, I'm interested in your questions... maybe start a a thread at polls.

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