// RUN: %clang_cc1 -fsyntax-only -verify %std_cxx98- %s
struct A {};
enum B { Dummy };
namespace C {}
struct D : A {};
struct E : A {};
struct F : D, E {};
struct G : virtual D {};
class H : A {}; // expected-note 2{{implicitly declared private here}}
int A::*pdi1;
int (::A::*pdi2);
int (A::*pfi)(int);
void (*A::*ppfie)() throw();
#if __cplusplus < 201703L
// expected-error@-2 {{exception specifications are not allowed beyond a single level of indirection}}
#endif
int B::*pbi;
#if __cplusplus <= 199711L // C++03 or earlier modes
// expected-warning@-2 {{use of enumeration in a nested name specifier is a C++11 extension}}
#endif
// expected-error@-4 {{'pbi' 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 'A' to pointer to member of derived class 'F':}}
int G::*pdig = pdi1; // expected-error {{conversion from pointer to member of class 'A' to pointer to member of class 'G' via virtual base 'D' is not allowed}}
// Conversion to member of base.
pdi1 = pdid; // expected-error {{assigning to 'int A::*' from incompatible type 'int D::*'}}
// 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; // expected-error {{cannot create a non-constant pointer to member function}}
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 'HasMembers'}}
(void)(phm.*pi); // expected-error {{left hand operand to .* must be a class compatible with the right hand operand, but is '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 {{ambiguous conversion from derived class 'F' to base class 'A'}}
(void)(ptrf->*pai); // expected-error {{ambiguous conversion from derived class 'F' to base class 'A'}}
H h, *ptrh = &h;
(void)(h.*pai); // expected-error {{cannot cast 'H' to its private base class 'A'}}
(void)(ptrh->*pai); // expected-error {{cannot cast 'H' to its private base class 'A'}}
(void)(hm.*i); // expected-error {{pointer-to-member}}
(void)(phm->*i); // expected-error {{pointer-to-member}}
// Okay
Incomplete *inc;
int Incomplete::*pii = 0;
(void)(inc->*pii);
}
struct OverloadsPtrMem
{
int operator ->*(const char *);
};
void i() {
OverloadsPtrMem m;
int foo = m->*"Awesome!";
}
namespace pr5985 {
struct c {
void h();
void f() {
void (c::*p)();
p = &h; // expected-error {{must explicitly qualify}}
p = &this->h; // expected-error {{cannot create a non-constant pointer to member function}}
p = &(*this).h; // expected-error {{cannot create a non-constant pointer to member function}}
}
};
}
namespace pr6783 {
struct Base {};
struct X; // expected-note {{forward declaration}}
int test1(int Base::* p2m, X* object)
{
return object->*p2m; // expected-error {{left hand operand to ->*}}
}
}
namespace PR7176 {
namespace base
{
struct Process
{ };
struct Continuous : Process
{
bool cond();
};
}
typedef bool( base::Process::*Condition )();
void m()
{ (void)(Condition) &base::Continuous::cond; }
}
namespace rdar8358512 {
// We can't call this with an overload set because we're not allowed
// to look into overload sets unless the parameter has some kind of
// function type.
template <class F> void bind(F f); // expected-note 12 {{candidate template ignored}}
template <class F, class T> void bindmem(F (T::*f)()); // expected-note 4 {{candidate template ignored}}
template <class F> void bindfn(F (*f)()); // expected-note 4 {{candidate template ignored}}
struct A {
void nonstat();
void nonstat(int);
void mixed();
static void mixed(int);
static void stat();
static void stat(int);
template <typename T> struct Test0 {
void test() {
bind(&nonstat); // expected-error {{no matching function for call}}
bind(&A::nonstat); // expected-error {{no matching function for call}}
bind(&mixed); // expected-error {{no matching function for call}}
bind(&A::mixed); // expected-error {{no matching function for call}}
bind(&stat); // expected-error {{no matching function for call}}
bind(&A::stat); // expected-error {{no matching function for call}}
}
};
template <typename T> struct Test1 {
void test() {
bindmem(&nonstat); // expected-error {{no matching function for call}}
bindmem(&A::nonstat);
bindmem(&mixed); // expected-error {{no matching function for call}}
bindmem(&A::mixed);
bindmem(&stat); // expected-error {{no matching function for call}}
bindmem(&A::stat); // expected-error {{no matching function for call}}
}
};
template <typename T> struct Test2 {
void test() {
bindfn(&nonstat); // expected-error {{no matching function for call}}
bindfn(&A::nonstat); // expected-error {{no matching function for call}}
bindfn(&mixed); // expected-error {{no matching function for call}}
bindfn(&A::mixed); // expected-error {{no matching function for call}}
bindfn(&stat);
bindfn(&A::stat);
}
};
};
template <class T> class B {
void nonstat();
void nonstat(int);
void mixed();
static void mixed(int);
static void stat();
static void stat(int);
// None of these can be diagnosed yet, because the arguments are
// still dependent.
void test0a() {
bind(&nonstat);
bind(&B::nonstat);
bind(&mixed);
bind(&B::mixed);
bind(&stat);
bind(&B::stat);
}
void test0b() {
bind(&nonstat); // expected-error {{no matching function for call}}
bind(&B::nonstat); // expected-error {{no matching function for call}}
bind(&mixed); // expected-error {{no matching function for call}}
bind(&B::mixed); // expected-error {{no matching function for call}}
bind(&stat); // expected-error {{no matching function for call}}
bind(&B::stat); // expected-error {{no matching function for call}}
}
};
template void B<int>::test0b(); // expected-note {{in instantiation}}
}
namespace PR9973 {
template<class R, class T> struct dm
{
typedef R T::*F;
F f_;
template<class U> int & call(U u)
{ return u->*f_; } // expected-error{{reference to non-static member function must be called; did you mean to call it with no arguments?}} expected-error {{non-const lvalue reference to type 'int' cannot bind to a temporary of type 'int'}}
template<class U> int operator()(U u)
{ call(u); } // expected-note{{in instantiation of}}
};
template<class R, class T>
dm<R, T> mem_fn(R T::*) ;
struct test
{ int nullary_v(); };
void f()
{
test* t;
mem_fn(&test::nullary_v)(t); // expected-note{{in instantiation of}}
}
}
namespace test8 {
struct A { int foo; };
int test1() {
// Verify that we perform (and check) an lvalue conversion on the operands here.
return (*((A**) 0)) // expected-warning {{indirection of non-volatile null pointer will be deleted}} expected-note {{consider}}
->**(int A::**) 0; // expected-warning {{indirection of non-volatile null pointer will be deleted}} expected-note {{consider}}
}
int test2() {
// Verify that we perform (and check) an lvalue conversion on the operands here.
// TODO: the .* should itself warn about being a dereference of null.
return (*((A*) 0))
.**(int A::**) 0; // expected-warning {{indirection of non-volatile null pointer will be deleted}} expected-note {{consider}}
}
}
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