feat: add math/base/special/log1pf

[0PrashantYadav0]

---

type: pre_commit_static_analysis_report
description: Results of running static analysis checks when committing changes. report:

• task: lint_filenames status: passed
• task: lint_editorconfig status: passed
• task: lint_markdown status: passed
• task: lint_package_json status: passed
• task: lint_repl_help status: passed
• task: lint_javascript_src status: passed
• task: lint_javascript_cli status: na
• task: lint_javascript_examples status: passed
• task: lint_javascript_tests status: passed
• task: lint_javascript_benchmarks status: passed
• task: lint_python status: na
• task: lint_r status: na
• task: lint_c_src status: passed
• task: lint_c_examples status: passed
• task: lint_c_benchmarks status: passed
• task: lint_c_tests_fixtures status: na
• task: lint_shell status: na
• task: lint_typescript_declarations status: passed
• task: lint_typescript_tests status: passed
• task: lint_license_headers status: passed ---

Resolves None.

Description

What is the purpose of this pull request?

This pull request:

• added base implementation for math/base/special/log1pf
• added benchmark, example and test.
• added docs and C-implementation.

Related Issues

Does this pull request have any related issues?

This pull request:

• ref [RFC]: Add C implementations to base special math functions (tracking issue) #649

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.

No.

Checklist

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

• Read, understood, and followed the contributing guidelines.

---

@stdlib-js/reviewers

[0PrashantYadav0]

/stdlib update-copyright-years

[0PrashantYadav0]

@gunjjoshi @kgryte Please review this pr as it is important for other packages.

[stdlib-bot]

Coverage Report

Package	Statements	Branches	Functions	Lines
math/base/special/log1pf	$\color{red}358/370$ $\color{green}+96.76\%$	$\color{red}31/35$ $\color{green}+88.57\%$	$\color{green}3/3$ $\color{green}+100.00\%$	$\color{red}358/370$ $\color{green}+96.76\%$

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

[0PrashantYadav0]

@gunjjoshi I made the changes you asked for. Please review also i use freeBSD for my implementation along with the reference of log1p

[gunjjoshi]

@0PrashantYadav0 Thanks for working on this, but after commit 46d0f11, there doesn't seem to be any change in the implementation. You should be strictly following the freeBSD reference, rather than trying to port the double-precision netlib reference.

[0PrashantYadav0]

@gunjjoshi I am not sure what you mean will you please explain this to me.

[Neerajpathak07]

@0PrashantYadav0 Refer this msun implementation for log1pf

[0PrashantYadav0]

I tried to implement the freeBSD completely but i am not sure why i am getting wrong values as an output.

[0PrashantYadav0]

@gunjjoshi I made few changes according to your previous comments. Please review them. Thank you.

[Planeshifter]

⚠️ Tracking Issue Closure Warning ⚠️

I noticed your PR description contains closing keywords ("Resolves", "Closes", or "Fixes") referencing a "Tracking Issue".

Why this matters:
Tracking issues should typically remain open until all related sub-issues are completed. GitHub automatically closes issues with such closing keywords when the PR is merged.

Required action:
Use "Progresses:" or "Ref:" instead to reference the tracking issue without automatically closing it.

Thank you for your contribution to the project!