[llvm-branch-commits] [libcxx] [libc++][TZDB] Implements time_zone::to_sys. (PR #90394)

[Louis Dionne via llvm-branch-commits]

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@@ -0,0 +1,20 @@
+//===----------------------------------------------------------------------===//
+//
+// 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
+//
+//===----------------------------------------------------------------------===//
+
+#include <chrono>
+
+_LIBCPP_BEGIN_NAMESPACE_STD
+
+namespace chrono {
+
+_LIBCPP_AVAILABILITY_TZDB _LIBCPP_EXPORTED_FROM_ABI nonexistent_local_time::~nonexistent_local_time() = default;
+_LIBCPP_AVAILABILITY_TZDB _LIBCPP_EXPORTED_FROM_ABI ambiguous_local_time::~ambiguous_local_time()     = default;
----------------
ldionne wrote:

```suggestion
_LIBCPP_AVAILABILITY_TZDB _LIBCPP_EXPORTED_FROM_ABI nonexistent_local_time::~nonexistent_local_time() = default; // key function
_LIBCPP_AVAILABILITY_TZDB _LIBCPP_EXPORTED_FROM_ABI ambiguous_local_time::~ambiguous_local_time()     = default; // key function
```

https://github.com/llvm/llvm-project/pull/90394