std::optional
summary
A 20 or 30 second lightning talk demonstrates that adding a monads‑style interface simplifies handling a present or absent value in std::optional. The demo shows an empty and a full std::optional, contrasts verbose conditional plumbing with a compact monadic composition, and claims the monadic approach is clearer. Slides and source code live on the CppCon2018 GitHub so the exact examples and code transformations can be inspected.
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