Commits


gawain.bolton authored and Benjamin Kietzman committed bb1e4647b84
ARROW-7178: [C++] Vendor forward compatible std::optional Add a version of std::optional vendored from https://github.com/martinmoene/optional-lite using git tag v3.2.0 Closes #5849 from gawain-bolton/ARROW-7178_vendor_forward_compatible_std_optional and squashes the following commits: 825213c4e <gawain.bolton> Amend LICENSE.txt for cpp/src/arrow/vendored/optional.hpp 1bb25a962 <gawain.bolton> ARROW-7178: Vendor forward compatible std::optional Authored-by: gawain.bolton <gawain.bolton@cfm.fr> Signed-off-by: Benjamin Kietzman <bengilgit@gmail.com>