[libcxx-commits] [libcxx] [libc++] mark `std::expected` as `nodiscard` (PR #130820)

[Hristo Hristov via libcxx-commits]

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@@ -58,7 +58,7 @@ _LIBCPP_PUSH_MACROS
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 template <class _Tp, class _Err>
-class expected;
+class [[nodiscrad]] expected;
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H-G-Hristov wrote:

These are the frozen headers. I don't think you should change them: https://discourse.llvm.org/t/rfc-freezing-c-03-headers-in-libc/77319/55
You probably need to add tests too.

https://github.com/llvm/llvm-project/pull/130820