| // PR c++/103681 |
| // { dg-do compile { target c++11 } } |
| // { dg-additional-options "-fabi-version=16 -Wabi" } |
| |
| struct A { |
| long l; |
| char c = -1; |
| }; |
| struct B : public A { |
| char d; |
| // { dg-warning "offset" "" { target c++14 } .-1 } |
| }; |
| |
| #define SA(X) static_assert(X,#X) |
| SA(sizeof (B) == sizeof (A)); |
| // { dg-error "static assertion" "" { target c++14 } .-1 } |
| |
| struct X { char d; }; |
| struct B2 : A, X { }; |
| // { dg-warning "offset" "" { target c++14 } .-1 } |
| SA(sizeof (B2) == sizeof (A)); |
| // { dg-error "static assertion" "" { target c++14 } .-1 } |
| |
| #if __cplusplus > 201800L |
| |
| struct C { |
| [[no_unique_address]] A a; |
| char d; |
| // { dg-warning "offset" "" { target c++20 } .-1 } |
| }; |
| SA(sizeof (C) == sizeof (A)); |
| // { dg-error "static assertion" "" { target c++20 } .-1 } |
| |
| struct C2 : A, X { }; |
| // { dg-warning "offset" "" { target c++20 } .-1 } |
| SA(sizeof (B2) == sizeof (A)); |
| // { dg-error "static assertion" "" { target c++20 } .-1 } |
| |
| #endif /* C++20 */ |
