Ok. unpack expects a string, but from other example I thought it would work.
My ref were:
https://www.perlmonks.org/?node_id=1015564 and https://www.oreilly.com/library/view/mastering-perl/9780596527242/ch16.html
I will bench the perf of the following.
my $a = 0;
my $b = 0;
$a += 1 << 0;
$a += 1 << 1;
$b += 1 << 1;
$b += 1 << 2;
my $i = $a & $b;
my $u = $a | $b;
my $i_cnt = () = sprintf("%b", $i) =~ /1/g;
my $u_cnt = () = sprintf("%b", $u) =~ /1/g;
printf "a is %b %d\n", $a, $a;
printf "b is %b %d\n", $b, $b;
printf "intersection is %b %d\n", $i, $i;
printf "union is %b %d\n", $u, $u;
say "set bit count in intersection: $i_cnt";
say "set bit count in union: $u_cnt";
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
Read Where should I post X? if you're not absolutely sure you're posting in the right place.
Please read these before you post! —
Posts may use any of the Perl Monks Approved HTML tags:
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.
| & || & |
| < || < |
| > || > |
| [ || [ |
| ] || ] ||