bkietz commented on code in PR #44477:
URL: https://github.com/apache/arrow/pull/44477#discussion_r1809443463
##########
cpp/src/arrow/result.h:
##########
@@ -294,7 +294,13 @@ class [[nodiscard]] Result : public
util::EqualityComparable<Result<T>> {
///
/// \return The stored non-OK status object, or an OK status if this object
/// has a value.
- constexpr const Status& status() const { return status_; }
+ constexpr const Status& status() const& { return status_; }
+
+ /// Gets the stored status object, or an OK status if a `T` value is stored.
+ ///
+ /// \return The stored non-OK status object, or an OK status if this object
+ /// has a value.
+ Status status() && { return status_; }
Review Comment:
I've opened https://github.com/apache/arrow/issues/44491 to suggest how we
could make it cheaper to put a placeholder error status in here
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