kotovalexarian-likes-github/ruby--ruby
1
0
Fork 0
mirror of https://github.com/ruby/ruby.git synced 2022-11-09 12:17:21 -05:00
Code Releases Activity

math.c: check domain of base argument

Browse source 
* 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
This commit is contained in:
nobu 2014-05-03 05:28:46 +00:00
parent 1fd4c7f1f5
commit 38656e24be
3 changed files with 26 additions and 8 deletions
Download patch file Download diff file Expand all files Collapse all files

2
test/ruby/test_math.rb
View file

@ -142,6 +142,8 @@ class TestMath < Test::Unit::TestCase
assert_nothing_raised { assert_infinity(-Math.log(-0.0)) }
assert_raise(Math::DomainError) { Math.log(-1.0) }
assert_raise(TypeError) { Math.log(1,nil) }
assert_raise(Math::DomainError, '[ruby-core:62309] [ruby-Bug #9797]') { Math.log(1.0, -1.0) }
assert_nothing_raised { assert_nan(Math.log(0.0, 0.0)) }
end
def test_log2