[jira] [Updated] (ARROW-3157) [C++] Improve buffer creation for typed data

["Wes McKinney (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-3157?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Wes McKinney updated ARROW-3157:
--------------------------------
    Labels: usability  (was: )

> [C++] Improve buffer creation for typed data
> --------------------------------------------
>
>                 Key: ARROW-3157
>                 URL: https://issues.apache.org/jira/browse/ARROW-3157
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: C++
>            Reporter: Philipp Moritz
>            Priority: Major
>              Labels: usability
>             Fix For: 0.11.0
>
>
> While looking into [https://github.com/apache/arrow/pull/2481,] I noticed this pattern:
> {code:java}
> const uint8_t* bytes_array = reinterpret_cast<const uint8_t*>(input);
> auto buffer = std::make_shared<Buffer>(bytes_array, sizeof(float)*input_length);{code}
> It's not the end of the world but seems a little verbose to me. It would be great to have something like this:
> {code:java}
> auto buffer = MakeBuffer<float>(input, input_length);{code}
> I couldn't find it, does it already exist somewhere? Any thoughts on the API? Potentially specializations to make a buffer out of a std::vector<T> would also be helpful.
>  



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