blob: 0a4dbc2ae93b847b7690e1fd998333399475100f (
plain)
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
|
// RUN: clang -fsyntax-only -verify %s
struct A {};
struct B : A {};
struct C : B {};
struct D : private A {};
struct E : A {};
struct F : B, E {};
struct Incomplete;
void basic_bad()
{
// ptr -> nonptr
(void)dynamic_cast<A>((A*)0); // expected-error {{'struct A' is not a reference or pointer}}
// nonptr -> ptr
(void)dynamic_cast<A*>(0); // expected-error {{'int' is not a pointer}}
// ptr -> noncls
(void)dynamic_cast<int*>((A*)0); // expected-error {{'int' is not a class}}
// noncls -> ptr
(void)dynamic_cast<A*>((int*)0); // expected-error {{'int' is not a class}}
// ref -> noncls
(void)dynamic_cast<int&>(*((A*)0)); // expected-error {{'int' is not a class}}
// noncls -> ref
(void)dynamic_cast<A&>(*((int*)0)); // expected-error {{'int' is not a class}}
// ptr -> incomplete
(void)dynamic_cast<Incomplete*>((A*)0); // expected-error {{'struct Incomplete' is incomplete}}
// incomplete -> ptr
(void)dynamic_cast<A*>((Incomplete*)0); // expected-error {{'struct Incomplete' is incomplete}}
}
void same()
{
(void)dynamic_cast<A*>((A*)0);
(void)dynamic_cast<A&>(*((A*)0));
}
void up()
{
(void)dynamic_cast<A*>((B*)0);
(void)dynamic_cast<A&>(*((B*)0));
(void)dynamic_cast<A*>((C*)0);
(void)dynamic_cast<A&>(*((C*)0));
// Inaccessible
//(void)dynamic_cast<A*>((D*)0);
//(void)dynamic_cast<A&>(*((D*)0));
// Ambiguous
(void)dynamic_cast<A*>((F*)0); // expected-error {{ambiguous conversion from derived class 'struct F' to base class 'struct A':\n struct F -> struct B -> struct A\n struct F -> struct E -> struct A}}
(void)dynamic_cast<A&>(*((F*)0)); // expected-error {{ambiguous conversion from derived class 'struct F' to base class 'struct A':\n struct F -> struct B -> struct A\n struct F -> struct E -> struct A}}
}
// FIXME: Other test cases require recognition of polymorphic classes.
|
