westonpace commented on code in PR #12928:
URL: https://github.com/apache/arrow/pull/12928#discussion_r854332572
##########
cpp/src/arrow/util/bitmap_writer.h:
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@@ -78,96 +79,24 @@ class BitmapWriter {
int64_t byte_offset_;
};
-class FirstTimeBitmapWriter {
+class ARROW_EXPORT FirstTimeBitmapWriter {
Review Comment:
Since the other classes are fully defined in the header you should not have
to. Technically it wouldn't hurt either but best to be minimal with changes
probably.
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