1 /* { dg-options "-std=iso9899:1990 -pedantic" } */
2 /* In strict ISO C mode, we don't recognize the anonymous struct/union
3 extension or any Microsoft extensions. */
9 struct A; /* { dg-warning "does not declare anything" } */
12 char testB[sizeof(struct B) == sizeof(struct A) ? 1 : -1];
16 struct D { char d; }; /* { dg-warning "does not declare anything" } */
19 char testC[sizeof(struct C) == sizeof(struct A) ? 1 : -1];
20 char testD[sizeof(struct D) == sizeof(struct A) ? 1 : -1];
24 struct { char z; }; /* { dg-warning "unnamed structs" } */
30 typedef struct A typedef_A;
32 typedef_A; /* { dg-warning "does not declare anything" } */
35 char testF[sizeof(struct F) == sizeof(struct A) ? 1 : -1];
37 /* __extension__ enables GNU C mode for the duration of the declaration. */
38 __extension__ struct G {
42 char testG[sizeof(struct G) == 2 * sizeof(struct A) ? 1 : -1];
45 __extension__ struct { char z; };
48 char testH[sizeof(struct H) == 2 * sizeof(struct A) ? 1 : -1];
50 /* Make sure __extension__ gets turned back off. */
52 struct { char z; }; /* { dg-warning "unnamed structs" } */
55 char testI[sizeof(struct I) == sizeof(struct E) ? 1 : -1];