[RFC]: add C implementation for `math/base/special/heaviside`

[gunjjoshi]

Description

This RFC proposes adding C implementation for math/base/special/heaviside.

double stdlib_base_heaviside( const double x, const string continuity )

Related Issues

Related issues #649.

Questions

No.

Other

No.

Checklist

• I have read and understood the Code of Conduct.
• Searched for existing issues and pull requests.
• The issue name begins with RFC:.

[gunjjoshi]

I would like to work on this. Also, for this, what type of interface must be used in addon.c ?

[kgryte]

The C interface should use an enum for the continuity, not a string. The enum should be defined in the heaviside header file. When going from JavaScript to C for testing, we would need to convert the JavaScript string to the corresponding enum value. Hence, the addon.c file should just use the DI_D interface.

[gururaj1512]

@gunjjoshi, Noticed this issue has been open for a while. Would it be alright if I work on it to help move it forward?

[gunjjoshi]

@gunjjoshi, Noticed this issue has been open for a while. Would it be alright if I work on it to help move it forward?

Sure, @gururaj1512. Feel free to open a PR for this.