https://git.ruby-lang.org/ruby.git/commit/?id=f7bd9f0750

From f7bd9f075030e5fa876320c1624a80685a636e82 Mon Sep 17 00:00:00 2001
From: Peter Zhu <peter@p...>
Date: Mon, 28 Sep 2020 17:35:27 -0400
Subject: Fix unsigned int overflow in error message for chr

The error message has an integer overflow because it treats an unsigned int as a signed int.

Before:
```
> 3_000_000_000.chr
-1294967296 out of char range (RangeError)
```

After:
```
> 3_000_000_000.chr
3000000000 out of char range (RangeError)
```

Redmine ticket: https://bugs.ruby-lang.org/issues/17186

diff --git a/numeric.c b/numeric.c
index 387e46f..6d4eb86 100644
--- a/numeric.c
+++ b/numeric.c
@@ -3417,7 +3417,7 @@ int_chr(int argc, VALUE *argv, VALUE num) https://github.com/ruby/ruby/blob/trunk/numeric.c#L3417
 	if (0xff < i) {
 	    enc = rb_default_internal_encoding();
 	    if (!enc) {
-		rb_raise(rb_eRangeError, "%d out of char range", i);
+		rb_raise(rb_eRangeError, "%u out of char range", i);
 	    }
 	    goto decode;
 	}
diff --git a/test/ruby/test_integer.rb b/test/ruby/test_integer.rb
index a111698..2755987 100644
--- a/test/ruby/test_integer.rb
+++ b/test/ruby/test_integer.rb
@@ -260,6 +260,7 @@ class TestInteger < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/ruby/test_integer.rb#L260
     assert_equal("a", "a".ord.chr)
     assert_raise(RangeError) { (-1).chr }
     assert_raise(RangeError) { 0x100.chr }
+    assert_raise_with_message(RangeError, "3000000000 out of char range") { 3_000_000_000.chr }
   end
 
   def test_upto
-- 
cgit v0.10.2


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