757256 - Provide Big Integer math support for JS

Status: RESOLVED DUPLICATE of bug 1366287

(Core :: JavaScript Engine, enhancement)

Description

[JR Conlin [:jrconlin,:jconlin]]

It would be swell to provide Big Integer support in javascript.

I'm doing some native client crypto work, but I can see where very large integer support would be awfully useful for things like graphic work, or scientific modelling. If nothing else, having local support for large integers would make Firefox a rather compelling choice.

(There. Filed. Itch scratched. Feel free to "WONTFIX" this once you're finished laughing or cringing.)

Comment 1

[Terrence Cole [:terrence]]

http://wiki.ecmascript.org/doku.php?id=strawman:value_objects

Comment 2

[Brendan Eich [:brendan]]

Not a dup -- bignum != int64.

/be

Comment 3

[Terrence Cole [:terrence]]

Ah, sorry, I had assumed that you were doing the full object value strawman in that bug.

Comment 4

[Brendan Eich [:brendan]]

The strawman is expansive (or perhaps just vague :-P): "We add new types such as uint64, int64, and bignum (and probably smaller int types as well)."

But bug 749786 is specific: "prototype int64/uint64 value objects, with operators and literal syntax".

/be

Comment 5

[Alex Vincent [:WeirdAl]]

Show me BigInteger and a way to implement value objects in JavaScript, and I'll show you BigDecimal implemented as a .js file.  :)

Comment 6

[Alex Vincent [:WeirdAl]]

I'll even throw in "digits on demand" for non-terminating decimals using yield.

Comment 7

[Florian Bender]

There is a BigInteger type in WebCrypto (http://www.w3.org/TR/WebCryptoAPI/#big-integer) though I suppose a "proper" BigInteger implementation should go into / is in ES7. See Bug 865789 for the WebCrypto implementation.