pitrou commented on a change in pull request #9680:
URL: https://github.com/apache/arrow/pull/9680#discussion_r594351631
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File path: cpp/src/arrow/util/compression_zlib.cc
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@@ -246,7 +246,7 @@ class GZipCompressor : public Compressor {
// again with the same value of the flush parameter and more output space
// (updated avail_out), until the flush is complete (deflate returns
// with non-zero avail_out)."
- return FlushResult{bytes_written, (bytes_written == 0)};
+ return FlushResult{bytes_written, (ret == Z_BUF_ERROR && stream_.avail_out
== 0)};
Review comment:
Should be `||`?
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