#arbitraryprecision — Public Fediverse posts

Fun with #JavaScript.

BigInt: 2's complement integers with arbitrary precision which, interestingly, actually works.

Why interestingly? It works even for the ~ operator to invert "all" bits, which is kind of a stretch with arbitrary precision: all those leading zero bits?🤷

But it works: 255n & ~3n = 251, the ~ inverts "all" bits of 011 to get 111...11100 with at least enough leading 1 bits as are needed to correctly mask 11111111 to 11111100. Nice.

#arbitraryPrecision #bitFiddling #bigint

Rust: building arbitrary precision integers (badly)

https://video.infosec.exchange/w/1J69YnmCAqQUkj65Y4Rpnk

val – An arbitrary precision calculator language written in Rust

https://github.com/terror/val

#HackerNews #val #Rust #Calculator #ArbitraryPrecision #Programming