Checklist

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• Read and understood the Code of Conduct.
• Searched for existing issues and pull requests.
• The issue name begins with RFC:.

Description

Description of the feature request.

This RFC proposes to add support for computing a double word product of two unsigned 32-bit integers. Adding support would partially address lack of 64-bit integer support in JavaScript (ignoring BigInt), which is necessary for, e.g., 32-bit integer multiplication, the product of which may exceed the maximum safe integer when evaluated in double-precision floating-point format.

Package: @stdlib/math/base/special/uimuldw
Alias: uimuldw

The API would follow the convention set forth of providing an optional output argument:

/**
* @param {ArrayLikeObject} [out] - output array
* @param {uinteger32} a - first unsigned integer
* @param {uinteger32} b - second unsigned integer
* @returns {ArrayLikeObject} output array
*/
function uimuldw( [out,] a, b ) {
    // Implementation...
}

Related Issues

Does this feature request have any related issues?

No.

Questions

Any questions for reviewers?

No.

Other

Any other information relevant to this feature request? This may include screenshots, references, sample output, and/or implementation notes.

• reference C implementation via Hacker's Delight (originally from Knuth and based on Montgomery multiplication)
• Related SO issues [1, 2, 3]