From: nagachika00@...
Date: 2014-05-28T14:39:48+00:00
Subject: [ruby-dev:48263] [ruby-trunk - Bug #9765] StringIO#putc is unnaware	of encoding

Issue #9765 has been updated by Tomoyuki Chikanaga.

Backport changed from 2.0.0: DONE, 2.1: REQUIRED to 2.0.0: DONE, 2.1: DONE

r45646 was backported into `ruby_2_1` branch at r46197.

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Bug #9765: StringIO#putc is unnaware of encoding
https://bugs.ruby-lang.org/issues/9765#change-46948

* Author: Nobuyoshi Nakada
* Status: Closed
* Priority: Normal
* Assignee: Nobuyoshi Nakada
* Category: ext
* Target version: current: 2.2.0
* ruby -v: r45637
* Backport: 2.0.0: DONE, 2.1: DONE
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`IO#putc`はエンコーディングを意識しますが、`StringIO#putc`がしていません。

~~~ruby
IO.pipe{|r,w| w.putc("\u{3042}"); w.putc(0x3044); w.close; p r.read}
# => "あD"

require 'stringio'
sio = StringIO.new(""); sio.putc("\u{3042}"); sio.putc(0x3044); p sio.string
# => "\xE3D"
~~~



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