?? anon-struct-2.c
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/* { dg-options "-std=gnu89" } *//* In GNU C mode, we recognize the anonymous struct/union extension, but not Microsoft extensions. */struct A { char a; };/* MS extension. */struct B { struct A; /* { dg-warning "does not declare anything" } */ char b;};char testB[sizeof(struct B) == sizeof(struct A) ? 1 : -1];/* MS extension. */struct C { struct D { char d; }; /* { dg-warning "does not declare anything" } */ char c;};char testC[sizeof(struct C) == sizeof(struct A) ? 1 : -1];char testD[sizeof(struct D) == sizeof(struct A) ? 1 : -1];/* GNU extension. */struct E { struct { char z; }; char e;};char testE[sizeof(struct E) == 2 * sizeof(struct A) ? 1 : -1];/* MS extension. */typedef struct A typedef_A;struct F { typedef_A; /* { dg-warning "does not declare anything" } */ char f;};char testF[sizeof(struct F) == sizeof(struct A) ? 1 : -1];/* Test that __extension__ does the right thing coming _from_ GNU C mode. */__extension__ struct G { struct { char z; }; char g;};char testG[sizeof(struct G) == 2 * sizeof(struct A) ? 1 : -1];struct H { struct { char z; }; char h;};char testH[sizeof(struct H) == 2 * sizeof(struct A) ? 1 : -1];
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