https://github.com/arithmetic-type/uint64

:rabbit: 64-bit unsigned integer arithmetic and logic operators for JavaScript
https://github.com/arithmetic-type/uint64

64-bit agpl integer-arithmetic javascript unsigned-integers

Last synced: about 1 month ago
JSON representation

:rabbit: 64-bit unsigned integer arithmetic and logic operators for JavaScript

• Host: GitHub
• URL: https://github.com/arithmetic-type/uint64
• Owner: arithmetic-type
• License: agpl-3.0
• Created: 2014-11-05T20:43:28.000Z (over 10 years ago)
• Default Branch: main
• Last Pushed: 2025-03-13T02:19:44.000Z (2 months ago)
• Last Synced: 2025-04-10T19:04:58.285Z (about 1 month ago)
• Topics: 64-bit, agpl, integer-arithmetic, javascript, unsigned-integers
• Language: JavaScript
• Homepage: https://arithmetic-type.github.io/uint64
• Size: 2.25 MB
• Stars: 5
• Watchers: 1
• Forks: 2
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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:rabbit: [@arithmetic-type/uint64](https://arithmetic-type.github.io/uint64)

==

64-bit unsigned integer arithmetic and logic operators for JavaScript.

Implemented using big endian arrays of two signed 32-bit integers.

Used in [js-hash](https://github.com/make-github-pseudonymous-again/js-hash).

For the 32-bit counterpart, see [arithmetic-type/uint32](https://github.com/arithmetic-type/uint32).

```js

let a = get64(0, 1) ;

rotr64(a, 1); // [-1, 0]

let x = get64(0xFFFFFFFF, 0xFFFFFFFF);

add64(x, x); // [-1, -2]

```

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