| /* { dg-options "-ansi -pedantic -pedantic-errors" } */ |
| /* In strict ISO C++ mode, we don't recognize the anonymous struct |
| extension or any Microsoft C extensions. */ |
| |
| struct A { char a; }; |
| |
| struct B { |
| struct A; /* forward decl of B::A. */ |
| char b; |
| }; |
| char testB[sizeof(B) == sizeof(A) ? 1 : -1]; |
| |
| struct C { |
| struct D { char d; }; /* decl of C::D. */ |
| char c; |
| }; |
| char testC[sizeof(C) == sizeof(A) ? 1 : -1]; |
| char testD[sizeof(C::D) == sizeof(A) ? 1 : -1]; |
| |
| /* GNU extension. */ |
| struct E { |
| struct { char z; }; /* { dg-error "prohibits anonymous structs" } */ |
| char e; |
| }; |
| |
| typedef struct A typedef_A; |
| struct F { |
| typedef_A; /* { dg-error "does not declare anything" } */ |
| char f; |
| }; |
| char testF[sizeof(struct F) == sizeof(struct A) ? 1 : -1]; |
| |
| /* __extension__ enables GNU C mode for the duration of the declaration. */ |
| __extension__ struct G { |
| struct { char z; }; |
| char g; |
| }; |
| char testG[sizeof(G) == 2 * sizeof(A) ? 1 : -1]; |
| |
| struct H { |
| __extension__ struct { char z; }; |
| char h; |
| }; |
| char testH[sizeof(H) == 2 * sizeof(A) ? 1 : -1]; |
| |
| /* Make sure __extension__ gets turned back off. */ |
| struct I { |
| struct { char z; }; /* { dg-error "prohibits anonymous structs" } */ |
| char i; |
| }; |