| // { dg-options "-std=gnu++20" } |
| // { dg-do compile { target c++20 } } |
| #include <type_traits> |
| |
| using std::is_corresponding_member; |
| |
| struct A { int a; }; |
| struct B { int b; }; |
| struct C: public A, public B { }; // not a standard-layout class |
| |
| static_assert( is_corresponding_member( &C::a, &C::b ) ); |
| // Succeeds because arguments have types int A::* and int B::* |
| |
| constexpr int C::*a = &C::a; |
| constexpr int C::*b = &C::b; |
| static_assert( ! is_corresponding_member( a, b ) ); |
| // Not corresponding members, because arguments both have type int C::* |
| |
| static_assert( noexcept(!is_corresponding_member(a, b)) ); |
