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* lib/mathn.rb (Fixnum#**, Float#**, Bignum#**): Allow fractional power for negative numbers when 'mathn' is required [redmine:783]

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@25068 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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marcandre 2009-09-24 01:07:21 +00:00
parent d09ca41895
commit 23c8ba8c46
2 changed files with 37 additions and 0 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
Thu Sep 24 10:06:19 2009 Marc-Andre Lafortune <ruby-core@marc-andre.ca>
* lib/mathn.rb (Fixnum#**, Float#**, Bignum#**): Allow fractional
power for negative numbers when 'mathn' is required [redmine:783]
Wed Sep 23 05:36:55 2009 Marc-Andre Lafortune <ruby-core@marc-andre.ca> Wed Sep 23 05:36:55 2009 Marc-Andre Lafortune <ruby-core@marc-andre.ca>
* eval.c (umethod_bind): Fix bug that disallowed methods from * eval.c (umethod_bind): Fix bug that disallowed methods from

32
lib/mathn.rb
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@ -108,10 +108,30 @@ end
class Fixnum class Fixnum
alias / quo alias / quo
alias power! ** unless method_defined? :power!
def ** (other)
if self < 0 && other.round != other
Complex.new(self, 0.0) ** other
else
power!(other)
end
end
end end
class Bignum class Bignum
alias / quo alias / quo
alias power! ** unless method_defined? :power!
def ** (other)
if self < 0 && other.round != other
Complex.new(self, 0.0) ** other
else
power!(other)
end
end
end end
class Rational class Rational
@ -306,3 +326,15 @@ class Complex
Unify = true Unify = true
end end
class Float
alias power! **
def ** (other)
if self < 0 && other.round != other
Complex.new(self, 0.0) ** other
else
power!(other)
end
end
end