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Re^2: Fastest way to sort a list of integers into 0,1,2,3,-3,-2,-1

by ikegami (Pope)
on Feb 06, 2019 at 03:31 UTC ( #1229451=note: print w/replies, xml ) Need Help??


in reply to Re: Fastest way to sort a list of integers into 0,1,2,3,-3,-2,-1
in thread Fastest way to sort a list of integers into 0,1,2,3,-3,-2,-1

Isn't
@list = unpack 'j*', pack 'J*', sort { $a <=> $b } unpack 'J*', pack 'j*', @list;
just a complicated/expensive way of doing
@list = unpack 'j>*', sort pack 'j>*', @list;

Replies are listed 'Best First'.
Re^3: Fastest way to sort a list of integers into 0,1,2,3,-3,-2,-1
by vr (Curate) on Feb 06, 2019 at 09:33 UTC

    No, ikegami, what you wrote won't work, but perhaps, instead, you meant Tux' version. It's slower -- (un)packing per element rather than "en masse" into (from) single scalar.

      Oh right. It would be

      @list = map { unpack 'j>', $_ } sort map { pack 'j>', $_ } @list;

      I knew I was tired and missing something.

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