feat: add assign and strided methods to csignumf

[Deepak91168]

Resolves #6507

Description

What is the purpose of this pull request?

This pull request: introduces additional functionality and documentation for the @stdlib/math/base/special/csignumf package. Specifically, it:

• Implements two new methods:
  • csignumf.assign(re, im, out, strideOut, offsetOut) for assigning the result of the signum function to an output array.
  • csignumf.strided(z, sz, oz, out, so, oo) for evaluating the signum function on strided array data.
• Adds corresponding test files:
  • test.assign.js
  • test.strided.js
• Adds performance benchmarks:
  • benchmark.assign.js
  • benchmark.strided.js
• Updates the documentation to include usage examples and interface descriptions for the new methods.

Related Issues

No

Does this pull request have any related issues?

This pull request:

• resolves #6507

Questions

Any questions for reviewers of this pull request?

No.

Other

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

Output of

➜ make test TEST_FILTER=".*/@stdlib/math/base/special/csignumf.*"

Last Few lines

➜ make benchmark BENCHMARKS_FILTER=".*/@stdlib/math/base/special/csignumf.*" Click here for complete benchmark.log

Checklist

Please ensure the following tasks are completed before submitting this pull request.

• [x] Read, understood, and followed the contributing guidelines.

---

@stdlib-js/reviewers

[stdlib-bot]

Coverage Report

Package	Statements	Branches	Functions	Lines
math/base/special/csignumf	$\color{green}369/369$ $\color{green}+100.00\%$	$\color{green}11/11$ $\color{green}+100.00\%$	$\color{green}4/4$ $\color{green}+100.00\%$	$\color{green}369/369$ $\color{green}+100.00\%$
ndarray/base/zeros	$\color{green}124/124$ $\color{green}+100.00\%$	$\color{green}7/7$ $\color{green}+100.00\%$	$\color{green}1/1$ $\color{green}+100.00\%$	$\color{green}124/124$ $\color{green}+100.00\%$

The above coverage report was generated for the changes in this PR.

[Deepak91168]

Hi, just checking in kindly — please let me know if there's anything else needed on my end to move this PR forward. Thanks :)

[anandkaranubc]

@Deepak91168 This PR requires quite a few changes. I’d recommend closely following the reference implementation and applying similar modifications here. Thanks for your work!

https://github.com/stdlib-js/stdlib/commit/486fed2b9816530eb135f9846f3745281cec76e2#diff-21f0b814eeab6be07313a2f02453372f37d95323a6ba4961f06843be96deceb9

[Deepak91168]

@Deepak91168 This PR requires quite a few changes. I’d recommend closely following the reference implementation and applying similar modifications here. Thanks for your work!

486fed2#diff-21f0b814eeab6be07313a2f02453372f37d95323a6ba4961f06843be96deceb9

Thanks for Reviewing! Will be incorporating each change recommended.

[anandkaranubc]

Thanks for Reviewing! Will be incorporating each change recommended.

Awesome! "Recommended changes + double-check anything else that doesn’t match the reference implementation".

[Deepak91168]

Thanks for Reviewing! Will be incorporating each change recommended.

Awesome! "Recommended changes + double-check anything else that doesn’t match the reference implementation".

Hey! I've made all the requested changes, closely following the referenced implementation. Please let me know if anything else needs adjustment. Thanks again for the thorough review!