cyb70289 commented on a change in pull request #9841:
URL: https://github.com/apache/arrow/pull/9841#discussion_r609198081
##########
File path: cpp/src/arrow/compute/kernels/scalar_arithmetic.cc
##########
@@ -233,6 +236,104 @@ struct DivideChecked {
}
};
+template <typename T>
+inline T integer_power(KernelContext* ctx, T left, T right) {
+ if (right < 0) {
+ ctx->SetStatus(
+ Status::Invalid("integers to negative integer powers are not
allowed"));
+ }
+ T result = 1;
+ if (left == 0 && right != 0) {
+ return 0;
+ }
+ while (true) {
+ if (right % 2) {
+ result *= left;
Review comment:
It should work only by enabling this flag. Maybe you need to delete all
files before running cmake again. I don't know.
To verify, you can build with `ninja -v` and check the command line if
`-fsanitize=undefined` is there.
You can also check the CI job logs to see what flags it enabled in building.
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