diff options
| author | usa <usa@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2016-04-22 07:33:18 +0000 |
|---|---|---|
| committer | usa <usa@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2016-04-22 07:33:18 +0000 |
| commit | 4eba34451749f684aeb9df41acacc0475b0b071e (patch) | |
| tree | a0e150a608a054a2e7bbc4f572ca528aad165b96 /test | |
| parent | e102f56340d50a2459312df876eb3010cc4b92ef (diff) | |
merge revision(s) 49913,54492,54494,54495,54496,54499,54503: [Backport #12249]
math.c: fix tgamma on mingw
* math.c (mingw_tgamma): tgamma(3) on mingw returns a NaN for a
big number, not infinity.
* 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_2@54687 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'test')
| -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 c4d0ff93f2..4efed1b094 100644 --- a/test/ruby/test_math.rb +++ b/test/ruby/test_math.rb @@ -239,6 +239,10 @@ 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_operator(x, :<, 0, mesg) end def test_lgamma @@ -281,6 +285,11 @@ class TestMath < Test::Unit::TestCase assert_equal(s, 1) 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_operator(x, :>, 0, mesg) + assert_equal(-1, sign, mesg) end def test_cbrt |