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Re^2: "Safe" print?

by sundialsvc4 (Abbot)
on May 14, 2013 at 13:45 UTC ( #1033464=note: print w/replies, xml ) Need Help??

in reply to Re: "Safe" print?
in thread "Safe" print?

... noting that the "//" operator is, IIRC, a relatively recent addition to the language.   You should have it, but you (or some backwater web-hosting companies who need not be named ...) conceivably might not.   See perldoc perlop on your system; look for the heading “C-style Logical Defined-Or.”

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Re^3: "Safe" print?
by ambrus (Abbot) on May 14, 2013 at 14:41 UTC

    See that first line in my the code? It says use 5.010;. The // operator was new in perl 5.10. It's not new anymore now.

      And that's right where I am (CENTOS 6 packaged Perl).

      I know and heartily approve the "//" operator (except when I somehow get confused and use backslashes), but don't want to have to write special code each time I print something that I can't prove is defined quickly. However, the Dumper suggestion (and related) is useful, I'm just embarrassed I didn't think of it myself (that's for complex structures! In debugging!).

        don't want to have to write special code each time I print something

        Then write a subroutine and call that every time.

Re^3: "Safe" print? (perldelta)
by LanX (Bishop) on May 14, 2013 at 15:20 UTC

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