Hattonuri commented on code in PR #39403:
URL: https://github.com/apache/arrow/pull/39403#discussion_r1439039971
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cpp/src/arrow/util/bit_util.h:
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@@ -167,10 +167,8 @@ constexpr int64_t CoveringBytes(int64_t offset, int64_t
length) {
// Returns the 'num_bits' least-significant bits of 'v'.
static inline uint64_t TrailingBits(uint64_t v, int num_bits) {
- if (ARROW_PREDICT_FALSE(num_bits == 0)) return 0;
Review Comment:
i think related, because ((v >> 0) << 0) ^ v == v ^ v == 0
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