feat: add C implementation for `math/base/special/heaviside` by anandkaranubc · Pull Request #6972 · stdlib-js/stdlib

anandkaranubc · 2025-05-10T19:41:55Z

Progresses #649

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Adds the complete C implementation for math/base/special/heaviside

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

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stdlib-bot · 2025-05-10T19:43:02Z

Coverage Report

Package	Statements	Branches	Functions	Lines
math/base/special/heaviside	$\color{green}316/316$ $\color{green}+100.00\%$	$\color{green}22/22$ $\color{green}+100.00\%$	$\color{green}4/4$ $\color{green}+100.00\%$	$\color{green}316/316$ $\color{green}+100.00\%$

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

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anandkaranubc · 2025-05-10T20:56:44Z

/stdlib update-copyright-years

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...ode_modules/@stdlib/math/base/special/heaviside/include/stdlib/math/base/special/heaviside.h

lib/node_modules/@stdlib/math/base/special/heaviside/src/addon.c

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lib/node_modules/@stdlib/math/base/special/heaviside/lib/str2enum.js

Planeshifter

Looks good to me overall; one question.

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lib/node_modules/@stdlib/math/base/special/heaviside/README.md

Co-authored-by: Athan <kgryte@gmail.com> Signed-off-by: Karan Anand <119553199+anandkaranubc@users.noreply.github.com>

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lib/node_modules/@stdlib/math/base/special/heaviside/benchmark/c/native/benchmark.c

Planeshifter · 2025-06-11T03:03:18Z

lib/node_modules/@stdlib/math/base/special/heaviside/lib/native.js

+*
+* @private
+* @param {number} x - input value
+* @param {string} [continuity] - continuity option


Should we mark the parameter as mandatory here?

Suggested change

* @param {string} [continuity] - continuity option

* @param {string} continuity - continuity option

The JS implementation does have it as optional, too, so probably better to leave as-is for now. There is an argument to be made to make the parameter mandatory overall in this package as we have moved to avoid variadic functions for performance reasons, but that could be handled in a separate PR.

cc @kgryte

I suggest going ahead and making mandatory across the package.

Cool! Updating the PR accordingly....

Thanks @Planeshifter and @kgryte for the feedback!

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Planeshifter

LGTM!

anandkaranubc · 2025-06-11T03:11:14Z

lib/node_modules/@stdlib/math/base/special/heaviside/test/test.native.js

+tape( 'the function returns `1` if `x` is positive', opts, function test( t ) {
+	var x;
+	var v;
+	var i;
+
+	for ( i = 0; i < 1e3; i++ ) {
+		x = ( randu()*100.0 ) + EPS;
+		v = heaviside( x );
+		t.strictEqual( v, 1.0, 'returns expected value' );
+	}
+	t.end();
+});


@Planeshifter As far as I remember, I kept the continuity parameter as optional because the str2enum function handles the condition when it's missing.

Very open to update this too if we need to make the second parameter as mandatory.

feat: initial commit for feedback

7824100

anandkaranubc marked this pull request as draft May 10, 2025 19:42

stdlib-bot added Math Issue or pull request specific to math functionality. Needs Review A pull request which needs code review. and removed Needs Review A pull request which needs code review. labels May 10, 2025

anandkaranubc added 6 commits May 10, 2025 13:16

feat: add support for enums

adfae95

docs: fix paramater name

d01e42c

feat: remove enum2str

c931698

test: add tests

9500391

stdlib-bot added the bot: In Progress Pull request is currently awaiting automation. label May 10, 2025

chore: update copyright years

0086b19

stdlib-bot removed the bot: In Progress Pull request is currently awaiting automation. label May 10, 2025

anandkaranubc marked this pull request as ready for review May 10, 2025 21:09

stdlib-bot added the Needs Review A pull request which needs code review. label May 10, 2025

anandkaranubc added Feature Issue or pull request for adding a new feature. C Issue involves or relates to C. and removed Needs Review A pull request which needs code review. labels May 10, 2025

anandkaranubc commented May 13, 2025

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anandkaranubc added 2 commits May 13, 2025 10:22

Merge branch 'develop' into feat/heaviside

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anandkaranubc dismissed Planeshifter’s stale review via c8a3c52 May 16, 2025 05:48

anandkaranubc commented May 16, 2025

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anandkaranubc and others added 4 commits May 16, 2025 08:06

Update lib/node_modules/@stdlib/math/base/special/heaviside/README.md

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Co-authored-by: Athan <kgryte@gmail.com> Signed-off-by: Karan Anand <119553199+anandkaranubc@users.noreply.github.com>

docs: update the README

8b773c4

Co-authored-by: Athan <kgryte@gmail.com> Signed-off-by: Karan Anand <119553199+anandkaranubc@users.noreply.github.com>

anandkaranubc added GSoC Google Summer of Code. gsoc: 2025 Google Summer of Code (2025). labels May 20, 2025

anandkaranubc marked this pull request as draft May 21, 2025 16:44

anandkaranubc added 2 commits May 21, 2025 10:33

Merge branch 'develop' into feat/heaviside

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kgryte mentioned this pull request Jan 25, 2026

feat: add C implementation for math/base/special/heaviside #9844

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	* @param {string} [continuity] - continuity option
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