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https://issues.apache.org/jira/browse/ARROW-7086?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ben Kietzman closed ARROW-7086.
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Resolution: Won't Fix
> [C++] Provide a wrapper for invoking factories to produce a Result
> ------------------------------------------------------------------
>
> Key: ARROW-7086
> URL: https://issues.apache.org/jira/browse/ARROW-7086
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Affects Versions: 0.15.1
> Reporter: Ben Kietzman
> Assignee: Ben Kietzman
> Priority: Major
> Fix For: 1.0.0
>
>
> There is a proliferation of code like:
> {code}
> Result<int> SafeAdd(int a, int b) {
> int out;
> RETURN_NOT_OK(SafeAdd(a, b, &out));
> return out;
> }
> {code}
> Ideally, this should be resolved by moving the implementation of SafeAdd into
> the Result returning overload then using {{Result::Value}} in the Status
> returning function. In cases where this is inconvenient, it'd be helpful to
> have an adapter for doing this more efficiently:
> {code}
> Result<int> SafeAdd(int a, int b) {
> return RESULT_INVOKE(SafeAdd, a, b);
> }
> {code}
> This will probably have to be a macro; otherwise the return type can be
> inferred but only when the function is not overloaded
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