1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
| // RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s
struct Y {
int x;
};
template<typename T>
struct X1 {
int f(T* ptr, int T::*pm) { // expected-error{{member pointer}}
return ptr->*pm;
}
};
template struct X1<Y>;
template struct X1<int>; // expected-note{{instantiation}}
template<typename T, typename Class>
struct X2 {
T f(Class &obj, T Class::*pm) { // expected-error{{to a reference}} \
// expected-error{{member pointer to void}}
return obj.*pm;
}
};
template struct X2<int, Y>;
template struct X2<int&, Y>; // expected-note{{instantiation}}
template struct X2<const void, Y>; // expected-note{{instantiation}}
template<typename T, typename Class, T Class::*Ptr>
struct X3 {
X3<T, Class, Ptr> &operator=(const T& value) {
return *this;
}
};
X3<int, Y, &Y::x> x3;
typedef int Y::*IntMember;
template<IntMember Member>
struct X4 {
X3<int, Y, Member> member;
int &getMember(Y& y) { return y.*Member; }
};
int &get_X4(X4<&Y::x> x4, Y& y) {
return x4.getMember(y);
}
template<IntMember Member>
void accept_X4(X4<Member>);
void test_accept_X4(X4<&Y::x> x4) {
accept_X4(x4);
}
namespace ValueDepMemberPointer {
template <void (*)()> struct instantiate_function {};
template <typename T> struct S {
static void instantiate();
typedef instantiate_function<&S::instantiate> x; // expected-note{{instantiation}}
};
template <typename T> void S<T>::instantiate() {
int a[(int)sizeof(T)-42]; // expected-error{{array with a negative size}}
}
S<int> s;
}
namespace PR18192 {
struct A { struct { int n; }; };
template<int A::*> struct X {};
constexpr int A::*p = &A::n;
X<p> x; // expected-error{{not a pointer to member constant}}
}
|