Bug #8621: MinGW: Rational tests are causing error

• Status: Closed
• Assignee: nobu (Nobuyoshi Nakada)
• Target version: -
• ruby -v: trunk r41900

[luislavena (Luis Lavena)]

Hello,

It seems that Rational related tests are causing failure in RubyInstaller CI:

http://ci.rubyinstaller.org/job/ruby-trunk-x86-test-all/1772/console

ComplexRational_Test#test_comp_srat = 0.00 s = .
ComplexRational_Test#test_rat_srat = make: *** [yes-test-all] Error 253

There is no backtrace or anything, but it has been failing over the last couple of builds repeatedly.

[phasis68 (Heesob Park)]

This issue is raise from pow function failure of float on mingw-w64 x86.

C:\work>irb
irb(main):001:0> 1 ** 2
=> 1
irb(main):002:0> 1.0 ** 2.0

C:\work>

Exited without return value or exception.

I found that this failure is due to r41836.

The pow call is causing infinite self calling.
The macro "#define pow rb_w32_pow" in win32.h
and rb_32_pow function calls pow again in win32.c

I think the r41836 should be reverted.

[nobu (Nobuyoshi Nakada)]

• Status changed from Open to Closed
• % Done changed from 0 to 100

This issue was solved with changeset r41923.
Luis, thank you for reporting this issue.
Your contribution to Ruby is greatly appreciated.
May Ruby be with you.

---

win32.c: fix infinite recursion

• win32/win32.c (rb_w32_pow): undef pow to get rid of infinite
  recursive call. re-fix [Bug #8495]. [ruby-core:55923] [Bug #8621]

[luislavena (Luis Lavena)]

• Status changed from Closed to Assigned
• Assignee changed from tadf (tadayoshi funaba) to nobu (Nobuyoshi Nakada)
• % Done changed from 100 to 50

Thank you nobu, but seems we are back to the floating error again:

http://ci.rubyinstaller.org/job/ruby-trunk-x86-test-all/1784/console

   1) Failure:
 TestSprintf#test_float [C:/Users/Worker/Jenkins/workspace/ruby-trunk-x86-build/test/ruby/test_sprintf.rb:193]:
 [ruby-dev:42551].
 <"0x1p+2"> expected but was
 <"0x1p+1">.

[hsbt (Hiroshi SHIBATA)]

• Target version changed from 2.1.0 to 2.2.0

[naruse (Yui NARUSE)]

• Target version deleted (2.2.0)

[jeremyevans0 (Jeremy Evans)]

• Status changed from Assigned to Closed
• Backport deleted (1.9.3: UNKNOWN, 2.0.0: UNKNOWN)

The floating error was fixed (test disabled and considered out of spec) by b2a128fa7cabcce182e7360db70b3e50bb39242d.