[libcxx-commits] [libcxx] [libc++] Add __detected_or_t and use it to implement some of the allocator traits aliases (PR #115654)

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git-clang-format --diff 6b21cf8ccad84e2670e458d8bdaccbd0ae37b46b 6fe52ab98cfe6d8f92234f5f6b514444bb6b2c98 --extensions h -- libcxx/include/__type_traits/detected_or.h libcxx/include/__memory/allocator_traits.h libcxx/include/__memory/unique_ptr.h
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View the diff from clang-format here.
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diff --git a/libcxx/include/__memory/allocator_traits.h b/libcxx/include/__memory/allocator_traits.h
index 48c392a8bc..6ee609dcee 100644
--- a/libcxx/include/__memory/allocator_traits.h
+++ b/libcxx/include/__memory/allocator_traits.h
@@ -133,8 +133,7 @@ template <class _Tp>
 using __propagate_on_container_swap_member = typename _Tp::propagate_on_container_swap;
 
 template <class _Alloc>
-using __propagate_on_container_swap =
-    __detected_or_t<false_type, __propagate_on_container_swap_member, _Alloc>;
+using __propagate_on_container_swap = __detected_or_t<false_type, __propagate_on_container_swap_member, _Alloc>;
 
 // __is_always_equal
 template <class _Tp>

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https://github.com/llvm/llvm-project/pull/115654