[llvm-branch-commits] [libcxx] [libc++][chrono] Completes the tzdb class. (PR #82157)

[Louis Dionne via llvm-branch-commits]

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@@ -655,6 +655,57 @@ void __init_tzdb(tzdb& __tzdb, __tz::__rules_storage_type& __rules) {
   std::ranges::sort(__tzdb.leap_seconds);
 }
 
+#ifdef _WIN32
+[[nodiscard]] static const time_zone* __current_zone_windows(const tzdb& tzdb) {
+  // TODO TZDB Implement this on Windows.
+  std::__throw_runtime_error("unknown time zone");
+}
+#else  // ifdef _WIN32
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ldionne wrote:

```suggestion
#else  // _WIN32
```

https://github.com/llvm/llvm-project/pull/82157