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Postings from April 2019
While looking at #134028 I noticed that none of pp_aelem, pp_aslice
nor pp_multidref adjust the saved array index if they're negative when
localizing, ie. the negative array index isn't adjusted to a positive
index before being stored in the save stack.
Some simple examples of the results:
tony@mars:.../git/perl$ ./perl -Ilib -MData::Dumper -e '@x = (1); { local $x[-1] = 2; push @x, 3; } print Dumper(\@x)'
$VAR1 = [
2,
1
];
tony@mars:.../git/perl$ ./perl -Ilib -MData::Dumper -e '@x = (1,2); { local $x[-2] = 3; pop @x; } print Dumper\@x'
$VAR1 = [
3
];
This was unexpected to me.
Should these ops adjust the index?
Tony
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