String#each_byte behaves differently than MRI in some cases
-----------------------------------------------------------
Key: JRUBY-1796
URL: http://jira.codehaus.org/browse/JRUBY-1796
Project: JRuby
Issue Type: Bug
Components: Core Classes/Modules
Affects Versions: JRuby 1.x
Environment: Latest JRuby 1.1b1
Reporter: Vladimir Sizikov
Attachments: string-each-byte-insert.patch
Example right out of rubinius specs:
{noformat}
# "keeps iterating from the old position (to new string end) when self changes"
do
r = ""
s = "hello world"
s.each_byte do |c|
r << c
s.insert(0, "<>") if r.size < 3
end
puts r
{noformat}
In MRI, it prints:
{noformat}
h><>hello world
{noformat}
In JRuby, it prints:
{noformat}
h><>hello w
{noformat}
This leads to rubinius spec failure.
The proposed patch fixes the problem.
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