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Re: What's the weaken here for?

by ww (Archbishop)
on Jan 20, 2012 at 02:27 UTC ( #948868=note: print w/replies, xml ) Need Help??


in reply to What's the weaken here for?

Scalar::Util
    and
Recent perl distributions without support for Scalar::Util::weaken() ?.

You'll also find a discussion in the section on references in "Learning Perl" (O'Reilly).

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[kcott]: s/imput/input/
[Corion]: DateTime::Duration ? Personally,I convert stuff to seconds using Time::Piece or Time::Local and then add the seconds and then use POSIX::strftime to print them as hours again
[marto]: good morning all, TCIF
[gnosti]: I'm reading from ffmpeg lengths of video clips in H:M:S and needing to add them and format them back to H:M:S for feeding back to ffmpeg
[marioroy]: kcott Thanks
[Corion]: gnosti: I would cheat and use my approach instead of dealing with durations as objects, or a module
[Corion]: You could even do the calculation directly - my $duration = $H * 3600+ $M*60 + $S; strftime '%H:%M:%S', timelocal($duratio n)
[Corion]: (and that strftime call is largely superfluous too, converting back to H:M:S isn't hard either)

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