321 lines
9.3 KiB
C++
321 lines
9.3 KiB
C++
// RUN: %clang_cc1 -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 {};
|
|
class H : A {}; // expected-note 2{{implicitly declared private here}}
|
|
|
|
int A::*pdi1;
|
|
int (::A::*pdi2);
|
|
int (A::*pfi)(int);
|
|
void (*A::*ppfie)() throw(); // expected-error {{exception specifications are not allowed beyond a single level of indirection}}
|
|
|
|
int B::*pbi; // expected-warning{{use of enumeration in a nested name specifier is a C++11 extension}} \
|
|
// expected-error {{'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}}
|
|
}
|
|
}
|