[libcxx-commits] [libcxx] [libc++] Implement P4206R0 Revert string support in std::constant_wrapper (PR #203338)

[A. Jiang via libcxx-commits]

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frederick-vs-ja wrote:

As a workaround for Clang 22, we can add `auto` into the return type for all compound assignment operators.
```diff
-      -> constant_wrapper<(_Tp::value += _Rp::value)> {
+      -> constant_wrapper<auto(_Tp::value += _Rp::value)> {
```

Example: https://godbolt.org/z/xnP1Wq86s.

https://github.com/llvm/llvm-project/pull/203338