[libcxx-commits] [libcxx] [libc++] Fix incorrect down-cast in __tree (PR #152181)

[via libcxx-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-libcxx

Author: Nikolas Klauser (philnik777)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/152181.diff


1 Files Affected:

- (modified) libcxx/include/__tree (+2-2) 


``````````diff
diff --git a/libcxx/include/__tree b/libcxx/include/__tree
index 1b1bb538029da..6ca1a623536f2 100644
--- a/libcxx/include/__tree
+++ b/libcxx/include/__tree
@@ -1445,8 +1445,8 @@ __tree<_Tp, _Compare, _Allocator>::__tree(const __tree& __t)
 
   *__root_ptr()       = static_cast<__node_base_pointer>(__copy_construct_tree(__t.__root()));
   __root()->__parent_ = __end_node();
-  __begin_node_ = static_cast<__end_node_pointer>(std::__tree_min(static_cast<__node_base_pointer>(__end_node())));
-  __size_       = __t.size();
+  __begin_node_       = static_cast<__end_node_pointer>(std::__tree_min(__end_node()->__left_));
+  __size_             = __t.size();
 }
 
 template <class _Tp, class _Compare, class _Allocator>

``````````

</details>


https://github.com/llvm/llvm-project/pull/152181