?? anon-struct1.c
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/* { 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;};
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