[libcxx-commits] [libcxx] [libc++] Make forward_list constexpr as part of P3372R3 (PR #129435)

[Nikolas Klauser via libcxx-commits]

================
@@ -302,6 +302,14 @@ concept __resettable_smart_pointer_with_args = requires(_Smart __s, _Pointer __p
 
 #endif
 
+template <class _PtrTo, class _PtrFrom>
+_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI _PtrTo __static_fancy_pointer_cast(const _PtrFrom& __p) {
----------------
philnik777 wrote:

Ok, I didn't see that. OTOH that error is entirely unrelated to the error in the original link.

Given the claim that #130310 doesn't remove the need for the helper I do think that that's worth blocking over though. This is something we should look into before introducing a questionable workaround.


https://github.com/llvm/llvm-project/pull/129435