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// RUN: %clang_cc1 -fsyntax-only -verify %s
template<typename T>
class X {
public:
struct C { T &foo(); };
struct D {
struct E { T &bar(); }; // expected-error{{cannot form a reference to 'void'}}
struct F; // expected-note{{member is declared here}}
};
};
X<int>::C *c1;
X<float>::C *c2;
X<int>::X *xi; // expected-error{{qualified reference to 'X' is a constructor name rather than a type wherever a constructor can be declared}}
X<float>::X *xf; // expected-error{{qualified reference to 'X' is a constructor name rather than a type wherever a constructor can be declared}}
void test_naming() {
c1 = c2; // expected-error{{assigning to 'X<int>::C *' from incompatible type 'X<float>::C *'}}
xi = xf; // expected-error{{assigning to 'X<int>::X<int> *' from incompatible type 'X<float>::X<float> *'}}
// FIXME: error above doesn't print the type X<int>::X cleanly!
}
void test_instantiation(X<double>::C *x,
X<float>::D::E *e,
X<float>::D::F *f) {
double &dr = x->foo();
float &fr = e->bar();
f->foo(); // expected-error{{implicit instantiation of undefined member 'X<float>::D::F'}}
}
X<void>::C *c3; // okay
X<void>::D::E *e1; // okay
X<void>::D::E e2; // expected-note{{in instantiation of member class 'X<void>::D::E' requested here}}
// Redeclarations.
namespace test1 {
template <typename T> struct Registry {
struct node;
static node *Head;
struct node {
node(int v) { Head = this; }
};
};
void test() {
Registry<int>::node node(0);
}
}
// Redeclarations during explicit instantiations.
namespace test2 {
template <typename T> class A {
class Foo;
class Foo {
int foo();
};
};
template class A<int>;
template <typename T> class B {
class Foo;
class Foo {
public:
typedef int X;
};
typename Foo::X x;
class Foo;
};
template class B<int>;
template <typename T> class C {
class Foo;
class Foo;
};
template <typename T> class C<T>::Foo {
int x;
};
template class C<int>;
}
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