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