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from cf60316 ARROW-7197: [Ruby] Suppress keyword argument related warnings
with Ruby 2.7
add bb1e464 ARROW-7178: [C++] Vendor forward compatible std::optional
No new revisions were added by this update.
Summary of changes:
LICENSE.txt | 28 +
cpp/src/arrow/util/{base64.h => optional.h} | 13 +-
cpp/src/arrow/vendored/optional.hpp | 1553 +++++++++++++++++++++++++++
3 files changed, 1588 insertions(+), 6 deletions(-)
copy cpp/src/arrow/util/{base64.h => optional.h} (76%)
create mode 100644 cpp/src/arrow/vendored/optional.hpp
