pop pulls one item off the array. sort returns a list. That list may be assigned to an array, or it may be kept as a list. You're keeping it as a list, in a sort of scratch storage. In that form, it's not popable. ;)

This will work: 

my $max = pop @{[ sort @vals ]};

[download]

This works because you're turning the list returned by sort into an anonymous array, which is immediately dereferenced.

Either way, this is an inefficient solution, as it requires that the entire list be sorted each time you take a max. Use the List::Util max() function, or if you're going to roll your own, just do a linear search.


Dave

In reply to Re: pop sort strangeness by davido
in thread pop sort strangeness by Brovnik

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