| 1 | struct Empty {}; |
|---|---|
| 2 | class EmptyClass {}; |
| 3 | class alignas(4) EmptyClassAligned {}; |
| 4 | class ClassEmptyMember { |
| 5 | int i[0]; |
| 6 | }; |
| 7 | |
| 8 | struct SingleMember { |
| 9 | int i; |
| 10 | }; |
| 11 | class SingleMemberClass { |
| 12 | int i; |
| 13 | }; |
| 14 | |
| 15 | struct PaddingMember { |
| 16 | int i; |
| 17 | char c; |
| 18 | }; |
| 19 | class PaddingMemberClass { |
| 20 | int i; |
| 21 | char c; |
| 22 | }; |
| 23 | |
| 24 | const unsigned sizeof_empty = sizeof(Empty); |
| 25 | const unsigned sizeof_empty_class = sizeof(EmptyClass); |
| 26 | const unsigned sizeof_empty_class_aligned = sizeof(EmptyClassAligned); |
| 27 | const unsigned sizeof_class_empty_member = sizeof(ClassEmptyMember); |
| 28 | const unsigned sizeof_single = sizeof(SingleMember); |
| 29 | const unsigned sizeof_single_class = sizeof(SingleMemberClass); |
| 30 | const unsigned sizeof_padding = sizeof(PaddingMember); |
| 31 | const unsigned sizeof_padding_class = sizeof(PaddingMemberClass); |
| 32 | |
| 33 | int main() { |
| 34 | Empty empty; |
| 35 | EmptyClass empty_class; |
| 36 | EmptyClassAligned empty_class_aligned; |
| 37 | ClassEmptyMember class_empty_member; |
| 38 | SingleMember single; |
| 39 | SingleMemberClass single_class; |
| 40 | PaddingMember padding; |
| 41 | PaddingMemberClass padding_class; |
| 42 | // Make sure globals are used. |
| 43 | return sizeof_empty + sizeof_empty_class + sizeof_class_empty_member + |
| 44 | sizeof_single + +sizeof_empty_class_aligned + sizeof_single_class + |
| 45 | sizeof_padding + sizeof_padding_class; |
| 46 | } |
| 47 |