nobu	2017-03-22 22:55:03 +0900 (Wed, 22 Mar 2017)

  New Revision: 58057

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=58057

  Log:
    stringio.c: RB_INTEGER_TYPE_P
    
    * ext/stringio/stringio.c (RB_INTEGER_TYPE_P): fallback definition
      for 2.3 or earlier.

  Modified files:
    trunk/ext/stringio/stringio.c
Index: ext/stringio/stringio.c
===================================================================
--- ext/stringio/stringio.c	(revision 58056)
+++ ext/stringio/stringio.c	(revision 58057)
@@ -20,6 +20,10 @@ https://github.com/ruby/ruby/blob/trunk/ext/stringio/stringio.c#L20
 #include <sys/fcntl.h>
 #endif
 
+#ifndef RB_INTEGER_TYPE_P
+# define RB_INTEGER_TYPE_P(c) (FIXNUM_P(c) || RB_TYPE_P(c, T_BIGNUM))
+#endif
+
 struct StringIO {
     VALUE string;
     rb_encoding *enc;

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