pitrou commented on a change in pull request #10814:
URL: https://github.com/apache/arrow/pull/10814#discussion_r677518329
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File path: cpp/src/arrow/util/future.h
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@@ -48,7 +49,19 @@ template <typename T>
struct is_future<Future<T>> : std::true_type {};
template <typename Signature>
-using result_of_t = typename std::result_of<Signature>::type;
+using result_of_t_2 = typename std::result_of<Signature>::type;
Review comment:
Is this actually used?
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