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Felipe Oliveira Carvalho authored and GitHub committed 3299d12efc9
GH-35360: [C++] Take offset into account in ScalarHashImpl::ArrayHash() (#35814) ### Rationale for this change A fix for #35360. ### What changes are included in this PR? - [x] A hash function that can hash bitmaps - [x] The fix for hashes of equal scalars sometimes not being equal because of offsets ### Are these changes tested? Yes. By unit tests. ### Are there any user-facing changes? No. * Closes: #35360 Lead-authored-by: Felipe Oliveira Carvalho <felipekde@gmail.com> Co-authored-by: Antoine Pitrou <antoine@python.org> Co-authored-by: Antoine Pitrou <pitrou@free.fr> Signed-off-by: Antoine Pitrou <antoine@python.org>