[ruby-core:121531] [Ruby Bug#21215] IRB upto yield self when self is little then end_val

3 Apr 2025


      Issue #21215 has been reported by fitmap (Justin Peal).

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Bug #21215: IRB upto yield self when self is little then end_val
https://bugs.ruby-lang.org/issues/21215

* Author: fitmap (Justin Peal)
* Status: Open
* ruby -v: ruby 3.2.2 (2023-03-30 revision e51014f9c0) [x64-mingw-ucrt]
* Backport: 3.2: UNKNOWN, 3.3: UNKNOWN, 3.4: UNKNOWN
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irb(main):001:0> 1.upto(0) { |k| p k }   => 1
1
irb(main):002:0> 0.downto(1) { |k| p k }   => 0
0
Save these statements to script and run the script, no output.


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