[Arjan-P]

Resolves part of #14819.

Description

What is the purpose of this pull request?

This pull request:

• Add C implementation for blas/ext/base/ndarray/ssumpw

Related Issues

Does this pull request have any related issues?

This pull request has the following related issues:

• [RFC]: add C implementations for blas/ext/base/ndarray packages #14819

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.

AI Assistance

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• Code generation (e.g., when writing an implementation or fixing a bug)
• Test/benchmark generation
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{{TODO: add disclosure if applicable}}

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@stdlib-js/reviewers

[Planeshifter]

⚠️ Issue Reference Review

An automated check found potentially unrelated issue/PR references in this PR:

Reference	Assessment	Reasoning
#14404	suspicious	Issue #14404 tracks creating ndarray interface variants for @stdlib/blas/ext/base modules that currently lack one. ssumpw does not appear anywhere in that issue's checklist (only sdssum/sdssumpw are listed under the s prefix), and this PR's diff shows @stdlib/blas/ext/base/ndarray/ssumpw already existed as a package (only lib/index.js and package.json are modified; the rest are new C/native-addon files) — i.e. it adds a native C implementation to an already-existing ndarray package rather than creating a missing ndarray interface.

Why this matters: GitHub automatically closes issues referenced with
closing keywords (Resolves, Closes, Fixes) when the PR is merged. Incorrect
references can accidentally close unrelated issues.

What to do:

• If the reference is correct, no action needed. This check may produce
  false positives.
• If the reference is incorrect, please update your PR description.

This assessment was generated by an AI model and is informational only.

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Generated by Claude Code

[stdlib-bot]

Coverage Report

Package	Statements	Branches	Functions	Lines
blas/ext/base/ndarray/ssumpw	$\\color{green}176/176$ $\\color{green}+0.00\\%$	$\\color{green}7/7$ $\\color{green}+0.00\\%$	$\\color{green}2/2$ $\\color{green}+0.00\\%$	$\\color{green}176/176$ $\\color{green}+0.00\\%$

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

[AryanSharma48]

@Arjan-P Left some suggestions on the first pass!

[AryanSharma48]

Suggested change

	"gypfile": true,
	"browser": "./lib/main.js",
	"gypfile": true,

[AryanSharma48]

Ensures browser bundlers directly import the pure JavaScript implementation rather than attempting to resolve the native addon loader in lib/index.js.

[AryanSharma48]

Suggested change

Extra line between JSDoc block and function declaration.

[AryanSharma48]

Suggested change

	tape( 'if provided a ndarray containing a single element, the function returns that element', function test( t ) {
	tape( 'if provided an ndarray containing a single element, the function returns that element', function test( t ) {

[AryanSharma48]

Suggested change

	t.strictEqual( v, 0.0, 'returns expected value' );
	t.strictEqual( isPositiveZerof( v ), true, 'returns expected value' );

Since isPositiveZerof is already imported, let's use isPositiveZerof( v ) here to explicitly verify that the native implementation preserves positive zero when summing an empty ndarray.