Feature #13508: How remove/refactor code related mathn library.

• Status: Assigned
• Assignee: hsbt (Hiroshi SHIBATA)
• Target version: -

[hsbt (Hiroshi SHIBATA)]

I removed mathn library at r58413 and r58432.

I have some concerns related mathn library. This issue is reminder for this concern.

1. Still remains conditions for mathn loaded. ex. https://github.com/ruby/ruby/blob/trunk/array.c#L5755
2. {complex,rational}.c have {nucomp,nurat}_canonicalization methods for mathn.
3. lib/cmath.rb have workaround code for mathn see. https://github.com/ruby/ruby/blob/trunk/lib/cmath.rb#L27

I continue to discuss concerns to @mrkn (Kenta Murata)

[shyouhei (Shyouhei Urabe)]

• Status changed from Open to Assigned

[hsbt (Hiroshi SHIBATA)]

• Target version changed from 2.5 to 2.6

I gave up to apply at Ruby 2.5. I try this next year.

[naruse (Yui NARUSE)]

• Target version deleted (2.6)