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Add Iterator#auto_rewind? and auto_rewind= #3796

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Add Iterator#auto_rewind? and auto_rewind= #3796

wants to merge 1 commit into from

Commits on Dec 30, 2016

  1. Add Iterator#auto_rewind? and auto_rewind= 

    If Iterator#auto_rewind? returns true, the iterator is rewinded after Iterator#each
automatically. Otherwise it returns false, the iterator is not rewinded.

Iterator#auto_rewind? default value is true, it is just breaking change.

This feature motivation is to be able to apply Enumerable algorithm to
Iterator. In current implementation, `Iterator#each` works only first
time.
    @makenowjust
    makenowjust committed Dec 30, 2016
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