Bug #5863: Integer#chr may return a string with multiple characters

• Status: Closed
• Assignee: -
• Target version: -
• ruby -v: ruby 1.9.3p0 (2011-10-30 revision 33570) [x86_64-darwin10.8.0]

[john_firebaugh (John Firebaugh)]

=begin
Is this a bug?

256.chr("SHIFT_JIS").length #=> 2

I think so, as it means that #chr and #ord can't be treated as inverses, and is generally confusing.

If not, the documentation for #chr should be changed, as it implies that the returned string is always a single character.
=end

[naruse (Yui NARUSE)]

• Status changed from Open to Closed
• % Done changed from 0 to 100

This issue was solved with changeset r34236.
John, thank you for reporting this issue.
Your contribution to Ruby is greatly appreciated.
May Ruby be with you.

---

• numeric.c (rb_enc_uint_char): raise RangeError when added codepoint
  is invalid. [Feature #5855] [Bug #5863] [Bug #5864]

• string.c (rb_str_concat): ditto.

• string.c (rb_str_concat): set encoding as ASCII-8BIT when the string
  is US-ASCII and the argument is an integer greater than 127.

• regenc.c (onigenc_mb2_code_to_mbclen): rearrange error code.

• enc/euc_jp.c (code_to_mbclen): ditto.

• enc/shift_jis.c (code_to_mbclen): ditto.