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author | nagachika <nagachika@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2016-04-18 17:46:05 +0000 |
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committer | nagachika <nagachika@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2016-04-18 17:46:05 +0000 |
commit | e824b05b3e0c01905d38af7d9c669ddc55cfcfb3 (patch) | |
tree | fa7d3e0e89bc9a638258607e3cdb2e6f937a545a /test/ruby | |
parent | b7c90baf074156456e2ba5216c492e8b79b8bc3c (diff) |
merge revision(s) 54492,54494,54495,54496,54499,54503: [Backport #12249]
* math.c (ruby_tgamma): fix tgamma(-0.0) on mingw.
[ruby-core:74817] [Bug #12249]
* math.c (ruby_lgamma_r): fix lgamma(-0.0) on mingw and OSX.
* math.c (ruby_lgamma_r): mswin's lgamma_r also seems to be wrong.
cf. [Bug #12249]
* math.c (ruby_lgamma_r): missing/lgamma_r.c is used on Windows,
since msvcrt does not provide it.
* missing/lgamma_r.c (lgamma_r): fix lgamma(-0.0).
[ruby-core:74823] [Bug #12249]
* configure.in (rb_cv_lgamma_r_m0): check if lgamma_r(-0.0)
returns negative infinity. [Bug #12249]
* math.c (ruby_lgamma_r): define by the configured result.
* configure.in (rb_cv_lgamma_r_m0): fix the condition for
lgamma_r(-0.0). [Bug #12249]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_3@54643 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'test/ruby')
-rw-r--r-- | test/ruby/test_math.rb | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/test/ruby/test_math.rb b/test/ruby/test_math.rb index ab55df8e30..7091783176 100644 --- a/test/ruby/test_math.rb +++ b/test/ruby/test_math.rb @@ -255,6 +255,10 @@ class TestMath < Test::Unit::TestCase end assert_raise(Math::DomainError) { Math.gamma(-Float::INFINITY) } + x = Math.gamma(-0.0) + mesg = "Math.gamma(-0.0) should be -INF" + assert_infinity(x, mesg) + assert_predicate(x, :negative?, mesg) end def test_lgamma @@ -271,6 +275,11 @@ class TestMath < Test::Unit::TestCase assert_float_and_int([Math.log(6), 1], Math.lgamma(4)) assert_raise(Math::DomainError) { Math.lgamma(-Float::INFINITY) } + x, sign = Math.lgamma(-0.0) + mesg = "Math.lgamma(-0.0) should be [INF, -1]" + assert_infinity(x, mesg) + assert_predicate(x, :positive?, mesg) + assert_equal(-1, sign, mesg) end def test_fixnum_to_f |