Re: How to force one variable to be an alias to another?

[vrk]

Perl 5.22 introduced the refalias feature. The simplest solution to the example is

use v5.22;
use warnings;
use feature 'refalias';

# Silence warnings if desired:
no warnings 'experimental::refaliasing';

my ($x, $y);
\$x = \$y; # alias here
$x = 5;
say $y; # prints 5