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https://issues.apache.org/jira/browse/ARROW-5508?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16864368#comment-16864368
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Wes McKinney commented on ARROW-5508:
-------------------------------------
Let's wait until {{StatusOr}} lands and evaluate options. It might be nice to
have {{Next}} return {{StatusOr<T>}}. Ultimately this is about having an
abstract base type like {{std::unique_ptr<Iterator<T>>}} to return from
functions that deal in streams
> [C++] Create reusable Iterator<T> interface
> --------------------------------------------
>
> Key: ARROW-5508
> URL: https://issues.apache.org/jira/browse/ARROW-5508
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Reporter: Wes McKinney
> Priority: Major
> Fix For: 0.14.0
>
>
> We have various iterator-like classes. I envision a reusable interface like
> {code}
> template <typename T>
> class Iterator {
> public:
> virtual ~Iterator() = default;
> virtual Status Next(T* out) = 0;
> }
> {code}
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