Issue #13052 has been updated by Tomoyuki Chikanaga.

Backport changed from 2.1: UNKNOWN, 2.2: DONE, 2.3: REQUIRED to 2.1: UNKNOWN, 2.2: DONE, 2.3: DONE

ruby_2_3 r57350 merged revision(s) 57119.

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Bug #13052: Array#combination segfaults if the Array is modified during iteration
https://bugs.ruby-lang.org/issues/13052#change-62508

* Author: Kazuki Yamaguchi
* Status: Closed
* Priority: Normal
* Assignee: 
* Target version: 
* ruby -v: 
* Backport: 2.1: UNKNOWN, 2.2: DONE, 2.3: DONE
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Array#combination and Array#repeated_combination segfault if the Array is modified from the invoked block.

Reproduce:

~~~ruby
ary = *1..100
ary.combination(1) { |x| p x; ary.clear } #=> segfault
# or ary.repeated_combination(1) { |x| p x; ary.clear } #=> segfault
~~~

This is the same as [Bug #9939], but it didn't fix the case of the argument is 1.



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