From: "jemmai (Jemma Issroff)" <noreply@...>
Date: 2022-11-09T22:17:36+00:00
Subject: [ruby-core:110675] [Ruby master Bug#19116] Array#pack is broken for long strings in buffer

Issue #19116 has been updated by jemmai (Jemma Issroff).


Fix is in [this PR](https://github.com/ruby/ruby/pull/6704)

----------------------------------------
Bug #19116: Array#pack is broken for long strings in buffer
https://bugs.ruby-lang.org/issues/19116#change-100017

* Author: jemmai (Jemma Issroff)
* Status: Open
* Priority: Normal
* Backport: 2.7: REQUIRED, 3.0: REQUIRED, 3.1: REQUIRED
----------------------------------------
`Array#pack` is broken for long strings in the buffer.

See this failure:

```
n = [ 65, 66, 67 ]
super_long_string = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
assert_equal(n.pack("@3ccc", buffer: super_long_string), "aaaABC")

# => <internal:pack>:144:in `pack': can't set length of shared string (RuntimeError)
	from (irb):6:in `<main>'
	from /opt/rubies/3.1.2/lib/ruby/gems/3.1.0/gems/irb-1.4.1/exe/irb:11:in `<top (required)>'
	from /opt/rubies/3.1.2/bin/irb:25:in `load'
	from /opt/rubies/3.1.2/bin/irb:25:in `<main>'
```



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