From: merch-redmine@...
Date: 2019-06-26T23:39:54+00:00
Subject: [ruby-core:93376] [Ruby trunk Bug#12196] lib: Date.valid_date? returns incorrect response for negative day

Issue #12196 has been updated by jeremyevans0 (Jeremy Evans).


I don't think this is a bug in the code, but I do think we should improve the documentation for valid_date.  I've added a pull request to do so: https://github.com/ruby/date/pull/7.

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Bug #12196: lib: Date.valid_date? returns incorrect response for negative day
https://bugs.ruby-lang.org/issues/12196#change-78899

* Author: ddoherty03 (Daniel Doherty)
* Status: Open
* Priority: Normal
* Assignee: 
* Target version: 
* ruby -v: 2.2.2
* Backport: 2.1: UNKNOWN, 2.2: UNKNOWN, 2.3: UNKNOWN
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~~~
require 'date'
puts RUBY_VERSION
if Date.valid_date?(2016, 2, -1)
  puts "Valid"
else
  puts "Invalid"
end
~~~

This reports 'Valid' for a negative day number.




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