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// RUN: clang-cc -fsyntax-only -verify %s
struct A {};
enum B { Dummy };
namespace C {}
struct D : A {};
struct E : A {};
struct F : D, E {};
struct G : virtual D {};
int A::*pdi1;
int (::A::*pdi2);
int (A::*pfi)(int);
int B::*pbi; // expected-error {{expected a class or namespace}} \
// expected-error{{does not point into a class}}
int C::*pci; // expected-error {{'pci' does not point into a class}}
void A::*pdv; // expected-error {{'pdv' declared as a member pointer to void}}
int& A::*pdr; // expected-error {{'pdr' declared as a member pointer to a reference}}
void f() {
// This requires tentative parsing.
int (A::*pf)(int, int);
// Implicit conversion to bool.
bool b = pdi1;
b = pfi;
// Conversion from null pointer constant.
pf = 0;
pf = __null;
// Conversion to member of derived.
int D::*pdid = pdi1;
pdid = pdi2;
// Fail conversion due to ambiguity and virtuality.
int F::*pdif = pdi1; // expected-error {{ambiguous conversion from pointer to member of base class 'struct A' to pointer to member of derived class 'struct F'}} expected-error {{incompatible type}}
int G::*pdig = pdi1; // expected-error {{conversion from pointer to member of class 'struct A' to pointer to member of class 'struct G' via virtual base 'struct D' is not allowed}} expected-error {{incompatible type}}
// Conversion to member of base.
pdi1 = pdid; // expected-error {{incompatible type assigning 'int struct D::*', expected 'int struct A::*'}}
// Comparisons
int (A::*pf2)(int, int);
int (D::*pf3)(int, int) = 0;
bool b1 = (pf == pf2); (void)b1;
bool b2 = (pf != pf2); (void)b2;
bool b3 = (pf == pf3); (void)b3;
bool b4 = (pf != 0); (void)b4;
}
struct TheBase
{
void d();
};
struct HasMembers : TheBase
{
int i;
void f();
void g();
void g(int);
static void g(double);
};
namespace Fake
{
int i;
void f();
}
void g() {
HasMembers hm;
int HasMembers::*pmi = &HasMembers::i;
int *pni = &Fake::i;
int *pmii = &hm.i;
void (HasMembers::*pmf)() = &HasMembers::f;
void (*pnf)() = &Fake::f;
&hm.f; // FIXME: needs diagnostic expected-warning{{result unused}}
void (HasMembers::*pmgv)() = &HasMembers::g;
void (HasMembers::*pmgi)(int) = &HasMembers::g;
void (*pmgd)(double) = &HasMembers::g;
void (HasMembers::*pmd)() = &HasMembers::d;
}
struct Incomplete;
void h() {
HasMembers hm, *phm = &hm;
int HasMembers::*pi = &HasMembers::i;
hm.*pi = 0;
int i = phm->*pi;
(void)&(hm.*pi);
(void)&(phm->*pi);
(void)&((&hm)->*pi);
void (HasMembers::*pf)() = &HasMembers::f;
(hm.*pf)();
(phm->*pf)();
(void)(hm->*pi); // expected-error {{left hand operand to ->* must be a pointer to class compatible with the right hand operand, but is 'struct HasMembers'}}
(void)(phm.*pi); // expected-error {{left hand operand to .* must be a class compatible with the right hand operand, but is 'struct HasMembers *'}}
(void)(i.*pi); // expected-error {{left hand operand to .* must be a class compatible with the right hand operand, but is 'int'}}
int *ptr;
(void)(ptr->*pi); // expected-error {{left hand operand to ->* must be a pointer to class compatible with the right hand operand, but is 'int *'}}
int A::*pai = 0;
D d, *pd = &d;
(void)(d.*pai);
(void)(pd->*pai);
F f, *ptrf = &f;
(void)(f.*pai); // expected-error {{left hand operand to .* must be a class compatible with the right hand operand, but is 'struct F'}}
(void)(ptrf->*pai); // expected-error {{left hand operand to ->* must be a pointer to class compatible with the right hand operand, but is 'struct F *'}}
(void)(hm.*i); // expected-error {{pointer-to-member}}
(void)(phm->*i); // expected-error {{pointer-to-member}}
Incomplete *inc;
int Incomplete::*pii = 0;
(void)(inc->*pii); // okay
}
struct OverloadsPtrMem
{
int operator ->*(const char *);
};
void i() {
OverloadsPtrMem m;
int foo = m->*"Awesome!";
}
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