[libcxx-commits] [libcxx] [libc++][type_traits] P2674R1: A trait for implicit lifetime types (PR #106870)

[Nikolas Klauser via libcxx-commits]

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@@ -0,0 +1,323 @@
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++03, c++11, c++14, c++17, c++20
+
+// These compilers don't support __builtin_is_implicit_lifetime yet.
+// UNSUPPORTED: clang-17, clang-18, clang-19, gcc-14, apple-clang-16, apple-clang-17
+// XFAIL: apple-clang
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philnik777 wrote:

You don't know that, so let's only add it when AppleClang17 actually exists.

https://github.com/llvm/llvm-project/pull/106870