From: brandon.j.fish@...
Date: 2020-02-06T19:26:59+00:00
Subject: [ruby-core:97075] [Ruby master Bug#16612] Enumerator::ArithmeticSequence#last with float range produces incorrect value

Issue #16612 has been reported by bjfish (Brandon Fish).

----------------------------------------
Bug #16612: Enumerator::ArithmeticSequence#last with float range produces incorrect value
https://bugs.ruby-lang.org/issues/16612

* Author: bjfish (Brandon Fish)
* Status: Open
* Priority: Normal
* ruby -v: 2.7.0
* Backport: 2.5: UNKNOWN, 2.6: UNKNOWN, 2.7: UNKNOWN
----------------------------------------
**Steps to reproduce**

``` shell
% ruby -e 'p ((0.24901079128550474)...(340.25008088980684)).step(34.00010700985213).last'
340.2500808898068
```
**Expected result**

Last value should match the value produced by the following:

``` shell
ruby -e 'p ((0.24901079128550474)...(340.25008088980684)).step(34.00010700985213).to_a[-1]'
306.24997387995467
```

**Environment**
This was observed in versions `2.7.0` and `2.6.5`.





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