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// RUN: %clang_cc1 -fsyntax-only -verify %s
struct X {
union {
float f3;
double d2;
} named;
union {
int i;
float f;
union {
float f2;
double d;
};
};
struct {
int a;
float b;
};
};
void test_unqual_references(struct X x, const struct X xc) {
// expected-note@-1 3{{variable 'xc' declared const here}}
x.i = 0;
x.f = 0.0;
x.f2 = x.f;
x.d = x.f;
x.f3 = 0; // expected-error{{no member named 'f3'}}
x.a = 0;
xc.d = 0.0; // expected-error{{cannot assign to variable 'xc' with const-qualified type 'const struct X'}}
xc.f = 0; // expected-error{{cannot assign to variable 'xc' with const-qualified type 'const struct X'}}
xc.a = 0; // expected-error{{cannot assign to variable 'xc' with const-qualified type 'const struct X'}}
}
struct Redecl {
int x; // expected-note{{previous declaration is here}}
struct y { }; // expected-warning{{declaration does not declare anything}}
union {
int x; // expected-error{{member of anonymous union redeclares 'x'}}
float y;
double z; // expected-note{{previous declaration is here}}
double zz; // expected-note{{previous declaration is here}}
};
int z; // expected-error{{duplicate member 'z'}}
void zz(); // expected-error{{duplicate member 'zz'}}
};
union { // expected-warning{{declaration does not declare anything}}
int int_val;
float float_val;
};
static union { // expected-warning{{declaration does not declare anything}}
int int_val2;
float float_val2;
};
void f() {
int_val2 = 0; // expected-error{{use of undeclared identifier}}
float_val2 = 0.0; // expected-error{{use of undeclared identifier}}
}
void g() {
union { // expected-warning{{declaration does not declare anything}}
int i;
float f2;
};
i = 0; // expected-error{{use of undeclared identifier}}
f2 = 0.0; // expected-error{{use of undeclared identifier}}
}
// <rdar://problem/6483159>
struct s0 { union { int f0; }; };
// <rdar://problem/6481130>
typedef struct { }; // expected-warning{{typedef requires a name}}
// PR3675
struct s1 {
int f0; // expected-note{{previous declaration is here}}
union {
int f0; // expected-error{{member of anonymous union redeclares 'f0'}}
};
};
// PR3680
struct {}; // expected-warning{{declaration does not declare anything}}
struct s2 {
union {
int a;
} // expected-warning{{expected ';' at end of declaration list}}
}; // expected-error{{expected member name or ';' after declaration specifiers}}
// Make sure we don't a.k.a. anonymous structs.
typedef struct {
int x;
} a_struct;
int tmp = (a_struct) { .x = 0 }; // expected-error {{initializing 'int' with an expression of incompatible type 'a_struct'}}
// This example comes out of the C11 standard; make sure we don't accidentally reject it.
struct s {
struct { int i; };
int a[];
};
// PR20930
struct s3 {
struct { int A __attribute__((deprecated)); }; // expected-note {{'A' has been explicitly marked deprecated here}}
};
void deprecated_anonymous_struct_member(void) {
struct s3 s;
s.A = 1; // expected-warning {{'A' is deprecated}}
}
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