kou commented on a change in pull request #7202:
URL: https://github.com/apache/arrow/pull/7202#discussion_r426192648
##########
File path: cpp/src/arrow/array.h
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@@ -798,7 +798,12 @@ class ARROW_EXPORT FixedSizeListArray : public Array {
i += data_->offset;
return static_cast<int32_t>(list_size_ * i);
}
+#ifdef _MSC_VER
int32_t value_length(int64_t i = 0) const { return list_size_; }
+#else
+ int32_t value_length(__attribute__((unused)) int64_t i = 0) const { return
list_size_; }
Review comment:
Can we use the `ARROW_ARG_UNUSED()` macro here?
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