[ruby-core:74996] [Ruby trunk Bug#9810] Numeric#step behavior with mixed Float, String arguments inconsistent with documentation

Issue #9810 has been updated by Yui NARUSE.

Backport changed from 2.1: WONTFIX, 2.2: REQUIRED, 2.3: REQUIRED to 2.1: WONTFIX, 2.2: WONTFIX, 2.3: WONTFIX

----------------------------------------
Bug #9810: Numeric#step behavior with mixed Float, String arguments inconsistent with documentation
https://bugs.ruby-lang.org/issues/9810#change-58123

* Author: Brian Shirai
* Status: Closed
* Priority: Normal
* Assignee: Nobuyoshi Nakada
* ruby -v: ruby 2.1.1p76 (2014-02-24 revision 45161) [x86_64-darwin13.0]
* Backport: 2.1: WONTFIX, 2.2: WONTFIX, 2.3: WONTFIX
----------------------------------------
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?

```ruby
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?


---Files--------------------------------
0001-Update-documentation-on-Numeric-step.patch (1.11 KB)


-- 
https://bugs.ruby-lang.org/

Unsubscribe: <mailto:[e-mail]?subject=unsubscribe>
<http://lists.ruby-lang.org/cgi-bin/mailman/options/ruby-core>