| // { dg-options "-std=gnu++20" } | |
| // { dg-do compile { target c++20 } } | |
| #include <version> | |
| #ifndef __cpp_lib_is_layout_compatible | |
| # error "Feature test macro for is_layout_compatible is missing in <version>" | |
| #elif __cpp_lib_is_pointer_interconvertible < 201907L | |
| # error "Feature test macro for is_layout_compatible has wrong value in <version>" | |
| #endif |