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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2022/03/08 13:16:11 UTC

[GitHub] [arrow] lidavidm commented on pull request #12579: ARROW-15829: [C++] Support SetNull in NumericalBuilder

lidavidm commented on pull request #12579:
URL: https://github.com/apache/arrow/pull/12579#issuecomment-1061765269


   Isn't `T& operator[](int64_t)` exactly the operator to overload to enable assignment? e.g. [cppreference states](https://en.cppreference.com/w/cpp/language/operators#Array_subscript_operator) "User-defined classes that provide array-like access that allows both reading and writing typically define two overloads for operator[]: const and non-const variants"
   
   So then it would make sense IMO to allow updating the null bitmap in addition to the values


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