* lib/rational.rb: fix high-precision Rationals cannot be

 	  converted to Floats. [ruby-Bugs:10502], [ruby-core:11069],
	  [ruby-dev:30743]



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@12252 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 3 insertions, 1 deletions

diff --git a/lib/rational.rb b/lib/rational.rb
index 5ed283cda0..73e8cef8e9 100644
--- a/lib/rational.rb
+++ b/lib/rational.rb
@@ -354,7 +354,7 @@ class Rational < Numeric
   # Converts the rational to a Float.
   #
   def to_f
-    @numerator.to_f/@denominator.to_f
+    @numerator.quof(@denominator)
   end
 
   #
@@ -476,6 +476,7 @@ class Integer
 end
 
 class Fixnum
+  alias quof quo
   undef quo
   # If Rational is defined, returns a Rational number instead of a Fixnum.
   def quo(other)
@@ -503,6 +504,7 @@ class Bignum
     alias power! **
   end
 
+  alias quof quo
   undef quo
   # If Rational is defined, returns a Rational number instead of a Bignum.
   def quo(other)