void is false 
my $w = wantarray;
$w = defined $w ? ($w ? 'list' : 'scalar') : 'void';
carp "wantarray : $w ";

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In reply to Re^3: Why are "a ||= b" and "a = a || b" different? by Anonymous Monk
in thread Why are "a ||= b" and "a = a || b" different? by saintmike

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