[ruby-core:124392] [Ruby Bug#21814] 0.pow(2,-9999999999999999990) should be zero

30 Dec 2025

      Issue #21814 has been updated by nobu (Nobuyoshi Nakada).

[GH-15771](https://github.com/ruby/ruby/pull/15771)

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Bug #21814: 0.pow(2,-9999999999999999990) should be zero
https://bugs.ruby-lang.org/issues/21814#change-115902

* Author: matz (Yukihiro Matsumoto)
* Status: Open
* Target version: 4.0
* ruby -v: 4.1dev
* Backport: 3.2: REQUIRED, 3.3: REQUIRED, 3.4: REQUIRED, 4.0: REQUIRED
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When I try `0.pow(2,-9999999999999999990)`, irb prints `-9999999999999999990`, but I think no matter what you divide zero by, the modulo should be zero.

Matz.

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