[libcxx-commits] [libcxx] [libc++] Correct `optional<T&>` implementation (PR #174537)

[William Tran-Viet via libcxx-commits]

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@@ -12,9 +12,10 @@
 #include "test_allocator.h"
 #include <type_traits>
 #include <tuple>
+#include "test_macros.h"
 
 // Types that can be used to test copy/move operations
-
+#if TEST_STD_VER >= 23
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smallp-o-p wrote:

This actually fails compilation when included in tests run with standard <C++23


https://github.com/llvm/llvm-project/pull/174537