[libcxx-commits] [libcxx] [libc++] Make `std::lock_guard` available with `_LIBCPP_HAS_NO_THREADS` (PR #98717)

[Louis Dionne via libcxx-commits]

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@@ -18,31 +18,44 @@
 //     -> lock_guard<_Mutex>;  // C++17
 
 #include <mutex>
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ldionne wrote:

I would suggest that we formulate the tests in terms of the `TestMutex` only, that way they would all become enabled when threading is disabled.

And then we can have a single test (probably in this test file) where we test basic interoperation between `std::lock_guard` and `std::mutex`, and that one would be the only one with `UNSUPPORTED: no-threads`.

https://github.com/llvm/llvm-project/pull/98717