Index of Coincidence: Modern Computer Update

Update to my Index of Coincidence &ldquo;Modern Computer&rdquo; testing with some other languages. &#xA; I brute-forced Enigma rotor settings in C, Rust, Swift, and Metal on an M4. &#xA; Single-threaded, Rust and Swift both land within 6-9% of C when you disable bounds checking. Leave the safety on, and there&rsquo;s a real performance gap. Turns out billions of array lookups add up. &#xA; &#xA;…