ruby.git/test/ruby/test_math.rb, branch v2_2_6

merge revision(s) 49913,54492,54494,54495,54496,54499,54503: [Backport #12249]

2016-04-22T07:33:18+00:00

	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

test_math.rb: use Float#infinite?

2014-09-19T01:47:06+00:00

* test/ruby/test_math.rb (TestMath#assert_infinity): Float#finite?
  returns true also for NaN, so use Float#infinite? instead.
  [ruby-core:65117] [Feature #10261]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47635 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

math.c: C99-like atan2

2014-05-04T01:23:01+00:00

* math.c (math_atan2): return values like as expected by C99 if
  both two arguments are infinity.  based on the patch by cremno
  phobia  in [ruby-core:62310].  [Feature #9799]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@45805 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

test_math.rb: rename check as assert_float

2014-05-03T23:41:04+00:00

* test/ruby/test_math.rb (assert_float): rename with `assert_`
  prefix so that the caller frame would appear in backtraces.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@45804 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

math.c: check domain of base argument

2014-05-03T05:28:46+00:00

* math.c (math_log): check domain of base argument too.  raises
  Math::DomainError instead of returning NaN if the base is less
  than 0, and returns NaN instead of -infinity if both of two
  arguments are 0.  [ruby-core:62309] [Bug #9797]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@45795 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

test/ruby: better assertions

2013-12-13T09:18:05+00:00

* test/ruby: use better assertions instead of mere assert.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44173 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

math.c: fix for Bignum argument

2013-09-28T14:25:59+00:00

* math.c (math_log, math_log2, math_log10): fix for Bignum argument.
  numbits should be add only when right shifted.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43080 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* math.c (math_atan2): change the behavior when x and y are zero.

2010-08-27T03:51:56+00:00

* test/ruby/test_math.rb (test_atan2): add tests for the above
  changes.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@29115 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

Surpress warnings.

2010-04-06T03:01:52+00:00

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@27235 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* test/ruby/test_math.rb: Fix lgamma test

2010-03-02T04:55:04+00:00

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@26793 b2dd03c8-39d4-4d8f-98ff-823fe69b080e