usa	2016-10-02 02:04:04 +0900 (Sun, 02 Oct 2016)

  New Revision: 56318

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=56318

  Log:
    * numeric.c (rb_fix2str): detect unnormalized Fixnum value.

  Modified files:
    trunk/ChangeLog
    trunk/numeric.c
Index: ChangeLog
===================================================================
--- ChangeLog	(revision 56317)
+++ ChangeLog	(revision 56318)
@@ -1,3 +1,7 @@ https://github.com/ruby/ruby/blob/trunk/ChangeLog#L1
+Sun Oct  2 02:03:06 2016  NAKAMURA Usaku  <usa@r...>
+
+	* numeric.c (rb_fix2str): detect unnormalized Fixnum value.
+
 Sat Oct  1 23:08:47 2016  NAKAMURA Usaku  <usa@r...>
 
 	* ext/date/date_parse.c (date_zone_to_diff): it's nonsence and really
Index: numeric.c
===================================================================
--- numeric.c	(revision 56317)
+++ numeric.c	(revision 56318)
@@ -3267,6 +3267,17 @@ rb_fix2str(VALUE x, int base) https://github.com/ruby/ruby/blob/trunk/numeric.c#L3267
     if (base < 2 || 36 < base) {
 	rb_raise(rb_eArgError, "invalid radix %d", base);
     }
+#if SIZEOF_LONG < SIZEOF_VOIDP
+# if SIZEOF_VOIDP == SIZEOF_LONG_LONG
+    if ((val >= 0 && (x & 0xFFFFFFFF00000000ull)) ||
+	(val < 0 && (x & 0xFFFFFFFF00000000ull) != 0xFFFFFFFF00000000ull)) {
+	rb_bug("Unnormalized Fixnum value %p", x);
+    }
+# elif
+    /* should do something like above code, but currently ruby does not know */
+    /* such platforms */
+# endif
+#endif
     if (val == 0) {
 	return rb_usascii_str_new2("0");
     }

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