* ext/bigdecimal/lib/bigdecimal/util.rb (BigDecimal#to_d): added

  for adapting other Numeric subclasses.  [ruby-dev:44245]
* test/bigdecimal/test_bigdecimal_util.rb: test for the above change.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@32676 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 8 insertions, 0 deletions

diff --git a/ext/bigdecimal/lib/bigdecimal/util.rb b/ext/bigdecimal/lib/bigdecimal/util.rb
index 6e1697be88..6860cfd702 100644
--- a/ext/bigdecimal/lib/bigdecimal/util.rb
+++ b/ext/bigdecimal/lib/bigdecimal/util.rb
@@ -54,6 +54,14 @@ class BigDecimal < Numeric
       i + "." + ("0"*(-z)) + f
     end
   end
+
+  # call-seq:
+  #     a.to_d -> bigdecimal
+  #
+  # Returns self.
+  def to_d
+    self
+  end
 end
 
 class Rational < Numeric