[libcxx-commits] [libcxx] [libc++] Make `<set>` `std::set` constexpr as part of P3372R3 (PR #167241)

[A. Jiang via libcxx-commits]

================
@@ -10,6 +10,8 @@
 #ifndef _LIBCPP_SET
 #define _LIBCPP_SET
 
+// TODO: add constexpr everywhere
+
----------------
frederick-vs-ja wrote:

Is `constexpr` still missing (in the product code)?
```suggestion
```

BTW, we should add sufficient `constexpr` occurrences to test files.

https://github.com/llvm/llvm-project/pull/167241