I did consider including that, but by providing a tied array, you're kind of encouraging end users to treat it as any old array.

So they might not consider that doing something like:

foreach my $item ( reverse @array ) {
  ...
}

[download]

Is going to impact performance way more than they might expect.

If it's exposed as an iterator, then it encourages them to access items in a one-at-a-time sequential fashion. They still can slurp it all into an array, but they can't blame you when that eats up all their memory.

Not saying it's never a good idea, but situations where it is aren't going to be that common.

toby döt ink

In reply to Re^3: Index or iterate - your choice by tobyink
in thread Index or iterate - your choice by GrandFather

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