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+Tue Aug 2 21:42:40 2016 Chia-sheng Chen <qitar888@gmail.com>
+
+ * math.c (tanh): make faster by the extract form if three
+ hyperbolic functions are unavailable. [Feature #12647]
+
Tue Aug 2 12:37:00 2016 Nobuyoshi Nakada <nobu@ruby-lang.org>
* ext/socket/option.c, ext/socket/rubysocket.h (inet_ntop): share