Now I recall what I was looking for: Array::RefElem. Here is the same operation which uses an array's internal pointer array to good use vs using a string as a perl-artificial pointer array.

av_store( @foo, 1, $bar );
$baz = \ $foo[ 1 ];
$baz == \ $bar;

VS

4 == length( pack( 'N', 0 ) );
substr( $foo,
        4 * 1,
        4,
        pack( 'N', 0 + \ $bar );
# Increment the refcount of $bar somehow.
$baz = \ Devel::Pointer::unsmash_sv( unpack( 'N', substr( $foo, 4 * 1,
+ 4 ) ) );
$baz == \ $bar;

[download]

UpdateD: Previously, I mispelled Array::RefElem as Array::RefElement and the search.cpan.org link wouldn't work.

In reply to Re^15: Techniques On Saving Memory by diotalevi
in thread Techniques On Saving Memory by Limbic~Region

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