http://www.perlmonks.org?node_id=411018


in reply to Re^3: The Null Mull (or, when OO needs more O)
in thread The Null Mull (or, when OO needs more O)

BEGIN {
    &Internals::SvREADONLY(\undef, 0);
    undef = 42;
    &Internals::SvREADONLY(\undef, 1);
}

use constant UNDEF => ${ \undef };

my $x = UNDEF;

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Which is probably better because you're commenting that you did something funky with undef. *shrugs*

Being right, does not endow the right to be rude; politeness costs nothing.
Being unknowing, is not the same as being stupid.
Expressing a contrary opinion, whether to the individual or the group, is more often a sign of deeper thought than of cantankerous belligerence.
Do not mistake your goals as the only goals; your opinion as the only opinion; your confidence as correctness. Saying you know better is not the same as explaining you know better.

In Section Meditations