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  1. or download this
    use strict;
use warnings;
...
my $b = 0;
my $c = $a and $b;
print "c=$c\n";
  2. or download this
    C:\temp>perl -MO=Deparse tmp16.pl
Useless use of private variable in void context at tmp16.pl line 6.
...
$c = $a && $b;
print "c=$c\n";
tmp16.pl syntax OK