From: muraken@...
Date: 2020-10-20T05:00:06+00:00
Subject: [ruby-core:100442] [Ruby master Bug#17271] Array#[]= puts -1 at the end-component of the endless range in its exception message

Issue #17271 has been reported by mrkn (Kenta Murata).

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Bug #17271: Array#[]= puts -1 at the end-component of the endless range in its exception message
https://bugs.ruby-lang.org/issues/17271

* Author: mrkn (Kenta Murata)
* Status: Assigned
* Priority: Normal
* Assignee: mrkn (Kenta Murata)
* ruby -v: ruby 2.7.1p83 (2020-03-31 revision a0c7c23c9c) [x86_64-linux]
* Backport: 2.5: UNKNOWN, 2.6: UNKNOWN, 2.7: UNKNOWN
----------------------------------------
```
irb(main):001:0> [*0..5][-7..] = 1
Traceback (most recent call last):
        5: from /home/mrkn/.rbenv/versions/2.7/bin/irb:23:in `<main>'
        4: from /home/mrkn/.rbenv/versions/2.7/bin/irb:23:in `load'
        3: from /home/mrkn/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/irb-1.2.4/exe/irb:11:in `<top (required)>'
        2: from (irb):1
        1: from (irb):1:in `[]='
RangeError (-7..-1 out of range)
```

The message should be `-7.. out of range`.



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