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merge revision(s) 54003: [Backport #12153]

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* test/-ext-/float/test_nextafter.rb: In AIX,
	  nextafter(+0.0,-0.0)=+0.0, and nextafter(-0.0,+0.0)=-0.0,
	  but they should return -0.0 and +0.0, respectively. This is
	  a known bug in nextafter(3) on AIX, so skip related tests.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_3@54385 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
naruse 2016-03-29 08:03:45 +00:00
parent 9d502cf9a4
commit c03f28c98c
3 changed files with 18 additions and 4 deletions
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13
test/-ext-/float/test_nextafter.rb
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@ -46,9 +46,16 @@ class TestFloatExt < Test::Unit::TestCase
if v1 == 0
s1 = 1.0/v1 < 0 ? "negative-zero" : "positive-zero"
s2 = 1.0/v2 < 0 ? "negative-zero" : "positive-zero"
assert_equal(s1, s2,
"Bug::Float.missing_nextafter(#{'%a' % n1}, #{'%a' % n2}) = #{'%a' % v1} != " +
"#{'%a' % v2} = Bug::Float.system_nextafter(#{'%a' % n1}, #{'%a' % n2})")
begin
assert_equal(s1, s2,
"Bug::Float.missing_nextafter(#{'%a' % n1}, #{'%a' % n2}) = #{'%a' % v1} != " +
"#{'%a' % v2} = Bug::Float.system_nextafter(#{'%a' % n1}, #{'%a' % n2})")
rescue Minitest::Assertion
if /aix/ =~ RUBY_PLATFORM
skip "Known bug in nextafter(3) on AIX"
end
raise $!
end
end
end
}