https://git.ruby-lang.org/ruby.git/commit/?id=ffe4a6ebf9

From ffe4a6ebf93166544c4265271f7b8cffa2208af6 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@r...>
Date: Fri, 2 Aug 2019 11:22:56 +0900
Subject: Use RB_INTEGER_TYPE_P


diff --git a/rational.c b/rational.c
index 0f3cee7..3737db4 100644
--- a/rational.c
+++ b/rational.c
@@ -119,7 +119,12 @@ f_abs(VALUE x) https://github.com/ruby/ruby/blob/trunk/rational.c#L119
     return rb_funcall(x, id_abs, 0);
 }
 
-fun1(integer_p)
+
+inline static VALUE
+f_integer_p(VALUE x)
+{
+    return RB_INTEGER_TYPE_P(x);
+}
 
 inline static VALUE
 f_to_i(VALUE x)
-- 
cgit v0.10.2


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