[datasketches-cpp] branch optional updated (7c4ee32 -> 1763177)

[al...@apache.org]

This is an automated email from the ASF dual-hosted git repository.

alsay pushed a change to branch optional
in repository https://gitbox.apache.org/repos/asf/datasketches-cpp.git


    from 7c4ee32  simple substitute for std::optional until we require C++17
     add 1763177  added copy constructor

No new revisions were added by this update.

Summary of changes:
 common/include/optional.hpp | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)


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