https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109941
Arthur O'Dwyer <arthur.j.odwyer at gmail dot com> changed:
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--- Comment #5 from Arthur O'Dwyer <arthur.j.odwyer at gmail dot com> ---
https://quuxplusone.github.io/blog/2024/12/08/should-expected-be-nodiscard/
https://github.com/microsoft/STL/pull/5174
As of this past Friday, Microsoft STL's std::expected is finally marked
nodiscard.
LLVM/Clang's own `llvm::Expected` type has been marked nodiscard since 2016.
I encourage libstdc++ to follow suit, for `expected` specifically.
(Personally I'm less sure that nodiscard belongs at all on `error_code` or
`errc`; Microsoft doesn't mark those yet. And on the exception hierarchy, which
Microsoft also marked last Friday, I think it's harmless and in keeping with
Microsoft's aggressive marking strategy, but perhaps not super helpful either.)
