Maybe I'm crazy, but this doesn't seem to work:
my $mask = hex($ARGV);
my $setbits = unpack("%32b*", $mask);
printf("0x%x has %d set\n", $mask, $setbits);
Then I run it:
0xff has 11 set
0x1001 has 14 set
Even the simple case:
0x0 has 2 set
What is going on here?
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