From 90985c411919bbc4ca197d400fb3e47f9195a389 Mon Sep 17 00:00:00 2001
From: akr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Mon, 11 Jul 2016 14:08:49 +0000
Subject: describe RUBY_INTEGER_UNIFICATION.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55634 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 NEWS | 1 +
 1 file changed, 1 insertion(+)

(limited to 'NEWS')

diff --git a/NEWS b/NEWS
index b562ea1a83..947d0074f9 100644
--- a/NEWS
+++ b/NEWS
@@ -123,6 +123,7 @@ with all sufficient information, see the ChangeLog file or Redmine
   So obj.kind_of?(Fixnum) works as obj.kind_of?(Integer).
   At C-level, Fixnum object and Bignum object should be distinguished by
   FIXNUM_P(obj) and RB_TYPE_P(obj, T_BIGNUM).
+  RUBY_INTEGER_UNIFICATION can be used to detect this feature.
   ruby-2.4.0-preview1 (temporally) removes rb_cFixnum and rb_cBignum
   to check the effect of incompatibility.
   (rb_cFixnum and rb_cBignum may be defined as rb_cInteger later if
-- 
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