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// RUN: %clang_cc1 -fsyntax-only -verify %s
// Test the use of elaborated-type-specifiers to inject the names of
// structs (or classes or unions) into an outer scope as described in
// C++ [basic.scope.pdecl]p5.
typedef struct S1 {
union {
struct S2 *x;
struct S3 *y;
};
} S1;
bool test_elab(S1 *s1, struct S2 *s2, struct S3 *s3) {
if (s1->x == s2) return true;
if (s1->y == s3) return true;
return false;
}
namespace NS {
class X {
public:
void test_elab2(struct S4 *s4); // expected-note{{'NS::S4' declared here}}
};
void X::test_elab2(S4 *s4) { } // expected-note{{passing argument to parameter 's4' here}}
}
void test_X_elab(NS::X x) {
struct S4 *s4 = 0; // expected-note{{'S4' is not defined, but forward declared here; conversion would be valid if it was derived from 'NS::S4'}}
x.test_elab2(s4); // expected-error{{cannot initialize a parameter of type 'S4 *' (aka 'NS::S4 *') with an lvalue of type 'struct S4 *'}}
}
namespace NS {
S4 *get_S4();
}
void test_S5_scope() {
S4 *s4; // expected-error{{unknown type name 'S4'; did you mean 'NS::S4'?}}
}
int test_funcparam_scope(struct S5 * s5) {
struct S5 { int y; } *s5_2 = 0;
if (s5 == s5_2) return 1; // expected-error {{comparison of distinct pointer types ('struct S5 *' and 'struct S5 *')}}
return 0;
}
namespace test5 {
struct A {
class __attribute__((visibility("hidden"))) B {};
void test(class __attribute__((visibility("hidden"), noreturn)) B b) { // expected-warning {{'noreturn' attribute only applies to functions and methods}}
}
};
}
namespace test6 {
struct C {
template <typename> friend struct A; // expected-note {{'A' declared here}}
};
struct B {
struct A *p; // expected-error {{implicit declaration introduced by elaborated type conflicts with a template of the same name}}
};
}
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