| ### Compilation failed: | |
| error: 1: interface block 'a' must contain at least one field | |
| a {} S; | |
| ^ | |
| error: 2: struct 'S' must contain at least one field | |
| struct S{} S[v]; | |
| ^^^^^^^^^^ | |
| error: 2: symbol 'S' was already defined | |
| struct S{} S[v]; | |
| ^^^^^^^^^^ | |
| error: 2: unknown identifier 'v' | |
| struct S{} S[v]; | |
| ^ | |
| error: 2: symbol 'S' was already defined | |
| struct S{} S[v]; | |
| ^^^^ | |
| error: 3: expected an identifier, but found '{' | |
| S {} p[] | |
| ^ | |
| 6 errors |