[libcxx-commits] [libcxx] [libc++] Refactor __tree::__find_equal to not have an out parameter (PR #147345)

[Louis Dionne via libcxx-commits]

================
@@ -1685,92 +1681,85 @@ typename __tree<_Tp, _Compare, _Allocator>::__node_base_pointer& __tree<_Tp, _Co
   return __find_leaf_low(__parent, __v);
 }
 
-// Find place to insert if __v doesn't exist
-// Set __parent to parent of null leaf
-// Return reference to null leaf
-// If __v exists, set parent to node of __v and return reference to node of __v
+// Find __v
+// If __v exists, return the parent of the node of __v a reference to the pointer to the node of __v.
+// If __v doesn't exist, return the parent of the null leaf and a reference to the pointer to the null leaf.
----------------
ldionne wrote:

```suggestion
// If __v exists, return the parent of the node of __v and a reference to the pointer to the node of __v.
// If __v doesn't exist, return the parent of the null leaf and a reference to the pointer to the null leaf.
```

https://github.com/llvm/llvm-project/pull/147345