milesgranger commented on code in PR #14696:
URL: https://github.com/apache/arrow/pull/14696#discussion_r1038298253
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cpp/src/arrow/compute/kernels/scalar_nested.cc:
##########
@@ -96,6 +97,15 @@ std::string ToString(const std::optional<T>& o) {
return o.has_value() ? ToChars(*o) : "(nullopt)";
}
+int64_t MaxSliceLength(const int64_t start, const int64_t stop, const int64_t
step) {
+ const auto startf = static_cast<float>(start);
+ const auto stopf = static_cast<float>(stop);
+ const auto stepf = static_cast<float>(step);
+
+ auto length = std::ceil((stopf - startf) / stepf);
+ return static_cast<int64_t>(length);
+}
Review Comment:
Hmm, I get a `Fatal Python error: Floating point exception` locally, when
switching to that. Will try again later this weekend/early next week.
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