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/* { dg-do compile } */
/* { dg-options "-fplan9-extensions" } */
/* Test for ambiguity when using the Plan 9 extensions. */
struct A {
char a; /* { dg-error "duplicate member" } */
};
struct B
{
struct A;
struct A;
};
char
f1 (struct B *p)
{
return p->a; /* { dg-error "no member" } */
}
void
f2 (struct A *p) /* { dg-message "expected" } */
{
}
void
f3 (struct B *p)
{
f2 (p); /* { dg-warning "incompatible pointer type" } */
}
struct C
{
char c; /* { dg-error "duplicate member" } */
};
struct D
{
struct C;
};
struct E
{
struct C;
struct D;
};
char
f4 (struct E *p)
{
return p->c; /* { dg-error "no member" } */
}
void
f6 (struct C *p) /* { dg-message "expected" } */
{
}
void
f7 (struct E *p)
{
f6 (p); /* { dg-warning "incompatible pointer type" } */
}
struct A
f8 (struct B *p)
{
return p->A; /* { dg-error "no member" } */
}
struct C
f9 (struct E *p)
{
return p->C; /* { dg-error "no member" } */
}
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