[libcxx-commits] [libcxx] [libc++] Avoid type-punning betwee __hash_value_type and pair (PR #143501)

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github-actions[bot] wrote:

<!--LLVM CODE FORMAT COMMENT: {clang-format}-->


:warning: C/C++ code formatter, clang-format found issues in your code. :warning:

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You can test this locally with the following command:
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``````````bash
git-clang-format --diff HEAD~1 HEAD --extensions  -- libcxx/include/__hash_table libcxx/include/unordered_map
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View the diff from clang-format here.
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``````````diff
diff --git a/libcxx/include/__hash_table b/libcxx/include/__hash_table
index b8fe848e6..91d32590b 100644
--- a/libcxx/include/__hash_table
+++ b/libcxx/include/__hash_table
@@ -123,7 +123,7 @@ using __get_hash_node_value_type_t = typename __get_hash_node_value_type<_Tp>::t
 
 template <class _Tp, class _VoidPtr>
 struct __hash_node : public __hash_node_base< __rebind_pointer_t<_VoidPtr, __hash_node<_Tp, _VoidPtr> > > {
-  using __node_value_type = __get_hash_node_value_type_t<_Tp>;
+  using __node_value_type              = __get_hash_node_value_type_t<_Tp>;
   using _Base _LIBCPP_NODEBUG          = __hash_node_base<__rebind_pointer_t<_VoidPtr, __hash_node<_Tp, _VoidPtr> > >;
   using __next_pointer _LIBCPP_NODEBUG = typename _Base::__next_pointer;
 
@@ -146,7 +146,9 @@ private:
   _ALIGNAS_TYPE(__node_value_type) char __buffer_[sizeof(__node_value_type)];
 
 public:
-  _LIBCPP_HIDE_FROM_ABI __node_value_type& __get_value() { return *std::__launder(reinterpret_cast<__node_value_type*>(&__buffer_)); }
+  _LIBCPP_HIDE_FROM_ABI __node_value_type& __get_value() {
+    return *std::__launder(reinterpret_cast<__node_value_type*>(&__buffer_));
+  }
 #endif
 
   _LIBCPP_HIDE_FROM_ABI explicit __hash_node(__next_pointer __next, size_t __hash) : _Base(__next), __hash_(__hash) {}

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https://github.com/llvm/llvm-project/pull/143501