Copilot commented on code in PR #3859:
URL: https://github.com/apache/avro/pull/3859#discussion_r3568265156
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lang/c++/impl/BinaryDecoder.cc:
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@@ -153,7 +203,7 @@ void BinaryDecoder::skipFixed(size_t n) {
}
Review Comment:
`BinaryDecoder::skipFixed()` can be called as the first operation after
`init()`. At that point `StreamReader::reset()` has set `next_`/`end_` to
`nullptr`, and `StreamReader::skipBytes()` performs `end_ - next_`, which is
undefined for null pointers. Avoid passing control to `skipBytes()` in that
state (and while here, reuse `checkAvailableBytes()` for memory-backed streams).
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