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