In perl.git, the branch sprout/avplaceholder has been created
<http://perl5.git.perl.org/perl.git/commitdiff/8b0907182d4daa0035e831261ca18fce4f3920ae?hp=0000000000000000000000000000000000000000>
at 8b0907182d4daa0035e831261ca18fce4f3920ae (commit)
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commit 8b0907182d4daa0035e831261ca18fce4f3920ae
Author: Father Chrysostomos <[email protected]>
Date: Tue Jul 2 13:07:45 2013 -0700
make AVs use &PL_sv_placeholder for empty slots
This is an experiment. It is unfinished. It turns out this is more
complicated and involves more lines of changes than using NULL for
nonexistent array elements, as there are already null checks in vari-
ous places.
This is the sort of thing that currently fails:
my @a; $a[2] = 1; for (@a) { $_ = 2 }
because foreach needs to take &PL_sv_placeholder into account.
Iâm not sure itâs worth finishing this patch.
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