[libcxx-commits] [libcxx] [libc++] Adds __cpp_lib_three_way_comparison FTM. (PR #91515)

[A. Jiang via libcxx-commits]

================
@@ -1236,7 +1236,8 @@ def add_version_header(tc):
         },
         {
             "name": "__cpp_lib_three_way_comparison",
-            "values": {"c++20": 201907},
+            "values": {"c++20": 201711},
+            # {"c++20": 201711} # P1614R2 The Mothership has Landed (see P1902R1 Missing feature-test macros 2017-2019)
             "headers": ["compare"],
             "unimplemented": True,
----------------
frederick-vs-ja wrote:

`strong_order` for `long double` is not yet supported ([Godbolt link](https://godbolt.org/z/dxhMM6cza)).

https://github.com/llvm/llvm-project/pull/91515