Re: exists $foo[7] and delete $foo[7]

[Pete Jordan <pjordan1@email.mot.com>]

Gurusamy Sarathy wrote:

> scalar(@array) and $#array are still related in the same way as before,
> but it _would_ be semantically cleaner for the former returning just the
> number of initialized values.  But we really can't do that without
> breaking compatibility.

How so? There's nothing to break compatibility with: The old (current)
definition of C<scalar @foo> would be "the number of elements that exist
in the array (excluding putative non-existent elements that can't yet,
errm, exist)"...

As long as you carry on counting /undefined/ values, nothing can break.
Anyone who did C<@foo=(1, 2, 3); delete $foo[1]; $foo[scalar @foo]=4;>
would get what they deserved ;)

Pete
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Follow-Ups from:

Gurusamy Sarathy <gsar@ActiveState.com>

References to:

Gurusamy Sarathy <gsar@ActiveState.com>

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