* regenc.c (code_to_mbc): raise RangeError Integer#chr

  when more than 255 is given with single byte encoding.
  [ruby-dev:35789]

git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@18399 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 2 insertions, 0 deletions

diff --git a/regenc.c b/regenc.c
index 75a6a039c..5afa1807b 100644
--- a/regenc.c
+++ b/regenc.c
@@ -629,6 +629,8 @@ onigenc_single_byte_code_to_mbclen(OnigCodePoint code ARG_UNUSED, OnigEncoding e
 extern int
 onigenc_single_byte_code_to_mbc(OnigCodePoint code, UChar *buf, OnigEncoding enc ARG_UNUSED)
 {
+  if (code > 0xff)
+      rb_raise(rb_eRangeError, "%"PRIdVALUE " out of char range", code);
   *buf = (UChar )(code & 0xff);
   return 1;
 }