dahbka-lis commented on code in PR #47815:
URL: https://github.com/apache/arrow/pull/47815#discussion_r2513706149
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cpp/src/arrow/util/range.h:
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@@ -44,6 +44,14 @@ std::vector<T> Iota(T length) {
return Iota(static_cast<T>(0), length);
}
+/// Create a vector containing the values from start with length elements
+template <typename T>
+std::vector<T> Iota(T start, size_t length) {
+ std::vector<T> result(length);
+ std::iota(result.begin(), result.end(), start);
+ return result;
+}
Review Comment:
> Can we call this in
The `stop` border not included, so for `fields.size() == 128`,
`Iota<int8_t>(0, 128)` is called and 128 is converted to -128.
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