Re^3: my 'if' condition doesn't work, why?

[Athanasius]

shame that it's not standard Perl but instead requires an extra module

Well, you can get a similar result using List::Util, which is a core module:

#! perl
use strict;
use warnings;
use List::Util 'any';

for my $n (0 .. 267)
{
    print "$n\n" if any { $n == $_ } (40, 47, 76);
}

Update: Fixed off-by-one error in the for loop range, thanks to AnomalousMonk.

Output:

17:34 >perl 1074_SoPW.pl
40
47
76

17:34 >

Hope that helps,