[RFC]: Add C implementation for `@stdlib/math/base/special/rempio2`

[Pranavchiku]

Description

This RFC proposes adding C implementation for @stdlib/math/base/special/rempio2.

double stdlib_base_rempio2( const double x, double *y );

Related Issues

Related issues #735.

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:.

[kgryte]

For reference, we could alternatively have the signature be

rempio2( const double x, double *y1, double *y2 );

Where y1 and y2 are pointers for storing output values. However, this is not conventional. Instead, FreeBSD expects a pointer to a two-element array. It is fine for us to do the same.

[lovelindhoni]

Hello @kgryte @Pranavchiku I would like to work on this issue :)

[Pranavchiku]

@lovelindhoni I'll prefer you to apply review and get #1659 merged.

[Pranavchiku]

Also this PR depends on round.

[USERSATOSHI]

@Pranavchiku I think we can start working on this as the pkgs for this are already implemented in C

if it is fine can I take up this issue as I have completed the kernel rempio functions ?

[USERSATOSHI]

Also this PR depends on round.

I only saw these pkg being used in rempio2 found it in medium

high-word-abs-mask, high-word-exponent-mask, high-word-significand-mask, get-high-word, get-low-word, from-words