Re: Re^2: Sparse arrays?

If anyone knows of a different way to go directly from real element to real element that'd really keen.

Easy-peasy:

foreach my $element (@sparse) {
    if ( defined $element ) {
        # YOUR CODE HERE #
    }
}
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defined() should be fast enough that calling it even a million times is no big deal.
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Comment on Re: Re^2: Sparse arrays? Download Code

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Re^4: Sparse arrays? by diotalevi (Canon) on Dec 18, 2002 at 16:52 UTC
That is less powerful than the example I posted and gains you nothing. Three tested states are uninitialied, undefined and defined. My snippet replaces your defined() test with an exists() test which diferentiates between non-existant elements and merely undefined. The "different" way I was thinking of would probably use something other than for() since for() also returns uninitialized elements. It's not sparse aware. You know - something like each() for arrays. Fun Fun Fun in the Fluffy Chair	[reply]

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Re^4: Sparse arrays?
by diotalevi (Canon) on Dec 18, 2002 at 16:52 UTC

That is less powerful than the example I posted and gains you nothing. Three tested states are uninitialied, undefined and defined. My snippet replaces your defined() test with an exists() test which diferentiates between non-existant elements and merely undefined.

The "different" way I was thinking of would probably use something other than for() since for() also returns uninitialized elements. It's not sparse aware. You know - something like each() for arrays.

Fun Fun Fun in the Fluffy Chair

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