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// RUN: %clang_cc1 -fsyntax-only -verify %s
// RUN: %clang_cc1 -fsyntax-only -verify -std=c++98 %s
// RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s
namespace PR8965 {
template<typename T>
struct X {
typedef int type;
T field; // expected-note{{in instantiation of member class}}
};
template<typename T>
struct Y {
struct Inner;
typedef typename X<Inner>::type // expected-note{{in instantiation of template class}}
type; // expected-note{{not-yet-instantiated member is declared here}}
struct Inner {
typedef type field; // expected-error{{no member 'type' in 'PR8965::Y<int>'; it has not yet been instantiated}}
};
};
Y<int> y; // expected-note{{in instantiation of template class}}
}
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}}
X<float>::X *xf; // expected-error{{qualified reference to 'X' is a constructor name rather than a type}}
void test_naming() {
c1 = c2; // expected-error{{incompatible pointer types assigning to 'X<int>::C *' from 'X<float>::C *'}}
xi = xf; // expected-error{{incompatible pointer types assigning to 'X<int>::X<int> *' from '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;
};
template class B<int>;
template <typename T> class C {
class Foo;
};
template <typename T> class C<T>::Foo {
int x;
};
template class C<int>;
}
namespace AliasTagDef {
template<typename T>
struct F {
using S = struct U {
#if __cplusplus <= 199711L
// expected-warning@-2 {{alias declarations are a C++11 extension}}
#endif
T g() {
return T();
}
};
};
int m = F<int>::S().g();
int n = F<int>::U().g();
}
namespace rdar10397846 {
template<int I> struct A
{
struct B
{
struct C { C() { int *ptr = I; } };
#if __cplusplus >= 201103L
// expected-error@-2 {{cannot initialize a variable of type 'int *' with an rvalue of type 'int'}}
#else
// expected-warning@-4 {{expression which evaluates to zero treated as a null pointer constant of type 'int *'}}
#endif
// expected-error@-6 {{cannot initialize a variable of type 'int *' with an rvalue of type 'int'}}
};
};
template<int N> void foo()
{
class A<N>::B::C X; // expected-note 2 {{in instantiation of member function}}
int A<N+1>::B::C::*member = 0;
}
void bar()
{
foo<0>(); // expected-note{{in instantiation of function template}}
foo<1>(); // expected-note{{in instantiation of function template}}
}
}
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