[libc-commits] [libc] [libc] Use QUEUE_TYPEOF in STAILQ_LAST (PR #79011)

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llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-libc

Author: Petr Hosek (petrhosek)

<details>
<summary>Changes</summary>

This is to ensure this macro is compatible with both C and C++.

---
Full diff: https://github.com/llvm/llvm-project/pull/79011.diff


1 Files Affected:

- (modified) libc/include/llvm-libc-macros/sys-queue-macros.h (+3-1) 


``````````diff
diff --git a/libc/include/llvm-libc-macros/sys-queue-macros.h b/libc/include/llvm-libc-macros/sys-queue-macros.h
index f41e7363e418bf4..59e6a9a392c9781 100644
--- a/libc/include/llvm-libc-macros/sys-queue-macros.h
+++ b/libc/include/llvm-libc-macros/sys-queue-macros.h
@@ -160,7 +160,9 @@
 #define STAILQ_EMPTY(head) ((head)->first == NULL)
 #define STAILQ_FIRST(head) ((head)->first)
 #define STAILQ_LAST(head, type, field)                                         \
-  (STAILQ_EMPTY(head) ? NULL : __containerof((head)->last, type, field.next))
+  (STAILQ_EMPTY(head)                                                          \
+       ? NULL                                                                  \
+       : __containerof((head)->last, QUEUE_TYPEOF(type), field.next))
 #define STAILQ_NEXT(elem, field) ((elem)->field.next)
 
 #define STAILQ_FOREACH(var, head, field)                                       \

``````````

</details>


https://github.com/llvm/llvm-project/pull/79011