From d7976d145193379d8c43f33e9a5714292a40d994 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Tue, 15 Jan 2019 12:05:46 +0000
Subject: Use `&` instead of `modulo`

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66830 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ext/stringio/stringio.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

(limited to 'ext')

diff --git a/ext/stringio/stringio.c b/ext/stringio/stringio.c
index 47c2c50b95..6ae9e805b5 100644
--- a/ext/stringio/stringio.c
+++ b/ext/stringio/stringio.c
@@ -810,11 +810,11 @@ strio_ungetbyte(VALUE self, VALUE c)
         return Qnil;
       case T_FIXNUM:
       case T_BIGNUM: ;
-        /* rb_int_modulo() not visible from exts */
-        VALUE v = rb_funcall(c, rb_intern("modulo"), 1, INT2FIX(256));
-        unsigned char cc = NUM2INT(v) & 0xFF;
-        c = rb_str_new((const char *)&cc, 1);
-        break;
+        /* rb_int_and() not visible from exts */
+        VALUE v = rb_funcall(c, '&', 1, INT2FIX(0xff));
+        const char cc = NUM2INT(v) & 0xFF;
+        strio_unget_bytes(ptr, &cc, 1);
+        return Qnil;
       default:
         SafeStringValue(c);
     }
-- 
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