Bug #15505: Complex#/ canonicalize rationals only when divisor is Complex

• Status: Closed
• Assignee: -
• Target version: -
• ruby -v: 2.6.0
• Backport: 2.4: UNKNOWN, 2.5: UNKNOWN, 2.6: UNKNOWN

[msnm (Masahiro Nomoto)]

[msnm (Masahiro Nomoto)]

• Subject changed from Ck to Complex#/ canonicalize rationals only when divisor is Complex
• ruby -v set to 2.6.0

In Ruby 2.6.0, Complex simplify division result when divisor is Complex, but does not when divisor is another class (Integer or Rational). This behavior seems to be less consistent: expected to simplify for all divisor.
https://bugs.ruby-lang.org/projects/ruby-trunk/repository/revisions/64610

p RUBY_VERSION #=> "2.6.0"
p Complex(4, 6) / Complex(2) #=> (2+3i)
p Complex(4, 6) / Integer(2) #=> ((2/1)+(3/1)*i)

[mrkn (Kenta Murata)]

• Status changed from Open to Closed

Applied in changeset trunk|r66744.

---

complex.c (f_divide): canonicalize a quotient

Cannonicalize resultant real and imaginary parts when complex number
divided by non-complex number.

[Fix GH-2065] [Bug #15505] [ruby-core:90891]

From: Joe Peric [e-mail]