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Re^4: No garbage collection for my-variables

by betterworld (Deacon)
on Sep 16, 2008 at 22:35 UTC ( #711816=note: print w/ replies, xml ) Need Help??

in reply to Re^3: No garbage collection for my-variables
in thread No garbage collection for my-variables

It's the same mechanism that sort uses for in-place sorting in 5.10. I've thought about patching List::Util::shuffle() in the same way.

I thought what you meant was that a subroutine can detect its being called in void context? But if I am not mistaken, 5.10's in-place sorting does not happen in void context:

% perl5.10.0 -lwe '@a = (2,1); sort @a; print @a' Useless use of sort in void context at -e line 1. 21

As I understand it, perl (5.10) will detect that in @a = sort @a, the destination array is the same as the source array, so it uses a more efficient algorithm (but it's still in list context).

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Re^5: No garbage collection for my-variables
by BrowserUk (Pope) on Sep 17, 2008 at 00:08 UTC

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