[libcxx-commits] [libcxx] [libc++][NFC] Use __construct_at and __destroy_at insted of using preprocessor conditionals (PR #70866)

[via libcxx-commits]

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@@ -300,11 +300,7 @@ struct _LIBCPP_TEMPLATE_VIS allocator_traits
         __enable_if_t<!__has_construct<allocator_type, _Tp*, _Args...>::value> >
     _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20
     static void construct(allocator_type&, _Tp* __p, _Args&&... __args) {
-#if _LIBCPP_STD_VER >= 20
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EricWF wrote:

Same question as below.

Are we required to use `construct_at` here? If not, it seems to be more expensive, and causes arguably poorer diagnostic messages. 



https://github.com/llvm/llvm-project/pull/70866