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Re: Trouble getting size of list returned from sub

by ColonelPanic (Friar)
on Nov 26, 2012 at 14:43 UTC ( #1005678=note: print w/replies, xml ) Need Help??

in reply to Trouble getting size of list returned from sub

Yet another solution that uses less memory than a temporary array:
sub get_size {scalar @_} my $size = get_size(big_list());

Using the list returned from the sub as the args for another subroutine call is a sneaky way to get an array without actually making a copy.

It makes for pretty intuitive code, too. And it probably isn't limited to recent Perl versions, as the map solution is.

When's the last time you used duct tape on a duct? --Larry Wall

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