From 7b3d663b4d9e58c8bc6c13e2b0ef703af2063a21 Mon Sep 17 00:00:00 2001
From: Koichi ITO <koic.ito@gmail.com>
Date: Sun, 15 Jan 2017 11:44:00 +0900
Subject: Several representation of BigDecimal has changed in Ruby 2.4.0+ [ci
 skip]

cf. https://github.com/ruby/bigdecimal/pull/42
---
 activesupport/lib/active_support/core_ext/object/duplicable.rb | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'activesupport')

diff --git a/activesupport/lib/active_support/core_ext/object/duplicable.rb b/activesupport/lib/active_support/core_ext/object/duplicable.rb
index ea81df2bd8..ed0df42b0a 100644
--- a/activesupport/lib/active_support/core_ext/object/duplicable.rb
+++ b/activesupport/lib/active_support/core_ext/object/duplicable.rb
@@ -107,6 +107,13 @@ class BigDecimal
   # BigDecimals are duplicable:
   #
   # BigDecimal.new("1.2").duplicable? # => true
+  #
+  # In Ruby 2.4.0:
+  #
+  # BigDecimal.new("1.2").dup         # => 0.12e1
+  #
+  # Whereas in Ruby 2.2 and 2.3:
+  #
   # BigDecimal.new("1.2").dup         # => #<BigDecimal:...,'0.12E1',18(18)>
   def duplicable?
     true
-- 
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