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79 lines
2.6 KiB
Diff
79 lines
2.6 KiB
Diff
https://bugs.ruby-lang.org/issues/21666
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https://github.com/ruby/ruby/commit/c5bd4acd30320a8e180ce9fcb24acdab4e10c73a
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From 9bd3e3a2597b40237957e7fa67f666725b6b470c Mon Sep 17 00:00:00 2001
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Message-ID: <9bd3e3a2597b40237957e7fa67f666725b6b470c.1775890716.git.sam@gentoo.org>
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From: nagachika <nagachika@ruby-lang.org>
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Date: Sat, 29 Nov 2025 12:31:08 +0900
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Subject: [PATCH] merge revision(s) c5bd4acd30320a8e180ce9fcb24acdab4e10c73a:
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[Backport #21666]
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[PATCH] [Bug #21666] Get rid of use of unspecified values
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---
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spec/ruby/core/math/lgamma_spec.rb | 11 ++++-------
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test/ruby/test_math.rb | 12 +++++++++++-
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2 files changed, 15 insertions(+), 8 deletions(-)
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diff --git a/spec/ruby/core/math/lgamma_spec.rb b/spec/ruby/core/math/lgamma_spec.rb
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index 33e7836448..2bf350993e 100644
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--- a/spec/ruby/core/math/lgamma_spec.rb
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+++ b/spec/ruby/core/math/lgamma_spec.rb
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@@ -5,10 +5,8 @@
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Math.lgamma(0).should == [infinity_value, 1]
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end
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- platform_is_not :windows do
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- it "returns [Infinity, 1] when passed -1" do
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- Math.lgamma(-1).should == [infinity_value, 1]
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- end
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+ it "returns [Infinity, ...] when passed -1" do
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+ Math.lgamma(-1)[0].should == infinity_value
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end
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it "returns [Infinity, -1] when passed -0.0" do
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@@ -47,8 +45,7 @@
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Math.lgamma(infinity_value).should == [infinity_value, 1]
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end
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- it "returns [NaN, 1] when passed NaN" do
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- Math.lgamma(nan_value)[0].nan?.should be_true
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- Math.lgamma(nan_value)[1].should == 1
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+ it "returns [NaN, ...] when passed NaN" do
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+ Math.lgamma(nan_value)[0].should.nan?
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end
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end
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diff --git a/test/ruby/test_math.rb b/test/ruby/test_math.rb
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index 73f44c6ae3..ae3d1be959 100644
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--- a/test/ruby/test_math.rb
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+++ b/test/ruby/test_math.rb
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@@ -296,12 +296,22 @@ def test_lgamma
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assert_float_and_int([Math.log(6), 1], Math.lgamma(4))
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assert_raise_with_message(Math::DomainError, /\blgamma\b/) { Math.lgamma(-Float::INFINITY) }
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+
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+ x, sign = Math.lgamma(+0.0)
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+ mesg = "Math.lgamma(+0.0) should be [INF, +1]"
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+ assert_infinity(x, mesg)
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+ assert_equal(+1, sign, mesg)
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+
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x, sign = Math.lgamma(-0.0)
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mesg = "Math.lgamma(-0.0) should be [INF, -1]"
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assert_infinity(x, mesg)
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assert_predicate(x, :positive?, mesg)
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assert_equal(-1, sign, mesg)
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- x, sign = Math.lgamma(Float::NAN)
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+
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+ x, = Math.lgamma(-1)
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+ assert_infinity(x, "Math.lgamma(-1) should be +INF")
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+
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+ x, = Math.lgamma(Float::NAN)
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assert_nan(x)
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end
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base-commit: 5483bfc1ae5725e871cbbddf313626fbb0f2dbb8
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prerequisite-patch-id: e1e341a29d6cceed0666bbaead934a8704d7be33
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--
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2.53.0
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