So lets suppose it's "only" needed for the case foreach(@array) which isn't an iterator but dealing with a flattened list, right?

I don't think so, @array could be tied to an iterator via Tie::Array and IIRC there are already modules on CPAN exploiting this "backdoor".

FWIW it also offers some syntactic sugar to implement your desired feature for a static @array, by designing a sub which returns a tied array-ref wrapping the static one:

for my $var ( @{ guard_last(@array,my $last) } ) {
    say "IS LAST" if $last;
    say $var;
}

[download]
edit

And I'm pretty sure this won't work with Perls older than ~5.10

Cheers Rolf
(addicted to the Perl Programming Language :)
Wikisyntax for the Monastery

In reply to Re^2: Perl's feature to determine, in current point of loop, that this is the last one? (arrays unpredictable) by LanX
in thread Perl's feature to determine, in current point of loop, that this is the last one? by Anonymous Monk

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