feat: add C implementation for number/float32/base/signbit

[Neerajpathak07]

Resolves #3397

Description

What is the purpose of this pull request?

This pull request:

• add C implementations for number/float32/base/signbit

Related Issues

Does this pull request have any related issues?

This pull request:

• resolves [RFC]: Add C implementation for number/float32/base/signbit #3397 & [RFC]: Add C implementations to base special math functions (tracking issue) #649

Questions

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No.

Other

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No.

Checklist

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

• Read, understood, and followed the contributing guidelines

---

@stdlib-js/reviewers

[Planeshifter]

@Neerajpathak07

Check out the workflow failures.

E.g., the lint step of package.json in https://github.com/stdlib-js/stdlib/actions/runs/12264198244/job/34217519484?pr=3399

ERROR: package.json in lib/node_modules/@stdlib/number/float32/base/signbit needs updates to directories and/or gypfile fields
diff --git a/lib/node_modules/@stdlib/number/float32/base/signbit/package.json b/lib/node_modules/@stdlib/number/float32/base/signbit/package.json
index 0b5a[8](https://github.com/stdlib-js/stdlib/actions/runs/12264198244/job/34217519484?pr=3399#step:10:9)f15d..1f40f6e35 100644
--- a/lib/node_modules/@stdlib/number/float32/base/signbit/package.json
+++ b/lib/node_modules/@stdlib/number/float32/base/signbit/package.json
@@ -14,11 +14,14 @@
     }
   ],
   "main": "./lib",
+  "gypfile": true,
   "directories": {
     "benchmark": "./benchmark",
     "doc": "./docs",
     "example": "./examples",
+    "include": "./include",
     "lib": "./lib",
+    "src": "./src",
     "test": "./test"
   },
   "types": "./docs/types",

tells us that several needed fields are not set and should be added.

[Neerajpathak07]

@Planeshifter I have added the essential files in the dependency tree of package.json.
But I am having doubts on how to resolve this particular error:-

gyp info spawn args [ 'BUILDTYPE=Release', '-C', 'build' ]
make[1]: Entering directory '/home/runner/work/stdlib/stdlib/lib/node_modules/@stdlib/number/float32/base/signbit/build'
  CC(target) Release/obj.target/addon/src/addon.o
../src/addon.c: In function ‘addon’:
../src/addon.c:63:18: warning: implicit declaration of function ‘napi_get_value_float’; did you mean ‘napi_get_value_bool’? [-Wimplicit-function-declaration]
   63 |         status = napi_get_value_float( env, argv[ 0 ], &value );
      |                  ^~~~~~~~~~~~~~~~~~~~
      |                  napi_get_value_bool
  CC(target) Release/obj.target/addon/src/main.o
  CC(target) Release/obj.target/addon/../to-word/src/to_word.o
  SOLINK_MODULE(target) Release/obj.target/addon.node
  COPY Release/addon.node
  ACTION Copying addon... src/addon.node
  TOUCH Release/obj.target/copy_addon.stamp
make[1]: Leaving directory '/home/runner/work/stdlib/stdlib/lib/node_modules/@stdlib/number/float32/base/signbit/build'
gyp info ok 

[stdlib-bot]

Coverage Report

Package	Statements	Branches	Functions	Lines
number/float32/base/signbit	$\color{green}178/178$ $\color{green}+100.00\%$	$\color{green}7/7$ $\color{green}+100.00\%$	$\color{green}2/2$ $\color{green}+100.00\%$	$\color{green}178/178$ $\color{green}+100.00\%$

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

[Neerajpathak07]

@Planeshifter All CI checks are passing pls review it. I am going to need this for implementing atan2f

[Planeshifter]

@Neerajpathak07 Wil try taking a look and review tonight.

[Planeshifter]

Thanks for your work on this!

Looks pretty good to me. manifest.json will need some updates. @kgryte, you mind taking final look please and then merge the PR after the comments have been addressed?

[Neerajpathak07]

@Planeshifter Thank you for the review.

[Neerajpathak07]

@kgryte would really appreciate a review on this since a PR #3338 is on stand-by and awaiting this to be merged!

[kgryte]

/stdlib update-copyright-years

[kgryte]

/stdlib merge

[kgryte]

After a bit of clean-up, this PR now LGTM.