Issue #6317 has been reported by masaakiaoyagi (Masaaki Aoyagi).

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Feature #6317: Range#cover???®å????°ã?¨ã?????Range??¤ã?³ã?¹ã?¿ã?³ã?¹ã?????????????????????????«ã????¦æ¬²??????
https://bugs.ruby-lang.org/issues/6317

Author: masaakiaoyagi (Masaaki Aoyagi)
Status: Open
Priority: Normal
Assignee: 
Category: 
Target version: 


?????³ã?¨ç?³ã????¾ã?????

以ä????®ã???????«ã??Range#cover???®å????°ã?¨ã?????Range??¤ã?³ã?¹ã?¿ã?³ã?¹ã??
???????????????????????«ã????¦æ¬²????????§ã?????
(1..4).cover?(2..3) # => true
(1..4).cover?(0..3) # => false

????????¢ã?????å®?è£??????¦ã?¿ã?¾ã???????®ã?§ã??æ·»ä?????????????¾ã?????



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