From: brixen@...
Date: 2014-05-06T17:25:58+00:00
Subject: [ruby-core:62430] [ruby-trunk - Bug #9810] [Open] Numeric#step behavior with mixed Float, String arguments inconsistent with documentation

Issue #9810 has been reported by Brian Shirai.

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Bug #9810: Numeric#step behavior with mixed Float, String arguments inconsistent with documentation
https://bugs.ruby-lang.org/issues/9810

* Author: Brian Shirai
* Status: Open
* Priority: Normal
* Assignee: 
* Category: 
* Target version: 
* ruby -v: ruby 2.1.1p76 (2014-02-24 revision 45161) [x86_64-darwin13.0]
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN
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The Numeric#step documentation states:

"If any of the arguments are floating point numbers, all are converted to floats..."

https://github.com/ruby/ruby/blob/trunk/numeric.c#L1921

Is the following code intended to be described by that documentation?

  1.1.step(5.1, "1") {}

Previously (eg 2.0.0) resulted in a TypeError:

$ ruby -v -e 'p 1.1.step(5.1, "1") {}'
ruby 2.0.0p247 (2013-06-27) [x86_64-darwin13.0.1]
-e:1:in `step': no implicit conversion to float from string (TypeError)
	from -e:1:in `<main>'

In 2.1.1, at least, an ArgumentError is raised:

$ ruby -v -e 'p 1.1.step(5.1, "1") {}'
ruby 2.1.1p76 (2014-02-24 revision 45161) [x86_64-darwin13.0]
-e:1:in `>': comparison of String with 0 failed (ArgumentError)
	from -e:1:in `step'
	from -e:1:in `<main>'

What's the intended behavior?




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