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M5Utility 0.0.8 git rev:f3e2efe
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A tag type to represent an empty optional. More...
#include <optional.hpp>
Classes | |
| struct | do_not_use |
Public Member Functions | |
| constexpr | nullopt_t (do_not_use, do_not_use) noexcept |
A tag type to represent an empty optional.