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
| // RUN: %clang_cc1 %s -fsyntax-only -verify -std=c++11
struct X {};
typedef X foo_t;
foo_t *ptr;
char c1 = ptr; // expected-error{{'foo_t *' (aka 'X *')}}
const foo_t &ref = foo_t();
char c2 = ref; // expected-error{{'const foo_t' (aka 'const X')}}
// deduced auto should not produce an aka.
auto aut = X();
char c3 = aut; // expected-error{{from 'X' to 'char'}}
// There are two classes named Foo::foo here. Make sure the message gives
// a way to them apart.
namespace Foo {
class foo {};
}
namespace bar {
namespace Foo {
class foo;
}
void f(Foo::foo* x); // expected-note{{passing argument to parameter 'x' here}}
}
void test(Foo::foo* x) {
bar::f(x); // expected-error{{cannot initialize a parameter of type 'Foo::foo *' (aka 'bar::Foo::foo *') with an lvalue of type 'Foo::foo *'}}
}
namespace ns {
struct str {
static void method(struct data *) {}
};
}
struct data { int i; };
typedef void (*callback)(struct data *);
void helper(callback cb) {} // expected-note{{candidate function not viable: no known conversion from 'void (*)(struct data *)' (aka 'void (*)(ns::data *)') to 'callback' (aka 'void (*)(struct data *)') for 1st argument}}
void test() {
helper(&ns::str::method); // expected-error{{no matching function for call to 'helper'}}
}
template <typename T>
class A {};
int a1 = A<decltype(1 + 2)>(); // expected-error{{no viable conversion from 'A<decltype(1 + 2)>' (aka 'A<int>') to 'int'}}
int a2 = A<A<decltype(1 + 2)>>(); // expected-error{{no viable conversion from 'A<A<decltype(1 + 2)> >' (aka 'A<A<int> >') to 'int'}}
int a3 = A<__typeof(1 + 2)>(); // expected-error{{no viable conversion from 'A<typeof (1 + 2)>' (aka 'A<int>') to 'int'}}
int a4 = A<A<__typeof(1 + 2)>>(); // expected-error{{no viable conversion from 'A<A<typeof (1 + 2)> >' (aka 'A<A<int> >') to 'int'}}
using B = A<decltype(1+2)>;
int a5 = B(); // expected-error{{no viable conversion from 'B' (aka 'A<int>') to 'int'}}
decltype(void()) (&f1)() = 0; // expected-error{{non-const lvalue reference to type 'decltype(void()) ()' (aka 'void ()') cannot bind to a temporary of type 'int'}}
decltype(void()) (&f2)(int) = 0; // expected-error{{non-const lvalue reference to type 'decltype(void()) (int)' (aka 'void (int)') cannot bind to a temporary of type 'int'}}
void (&f3)(decltype(1 + 2)) = 0; // expected-error{{non-const lvalue reference to type 'void (decltype(1 + 2))' (aka 'void (int)') cannot bind to a temporary of type 'int'}}
decltype(1+2) (&f4)(double, decltype(1 + 2)) = 0; // expected-error{{non-const lvalue reference to type 'decltype(1 + 2) (double, decltype(1 + 2))' (aka 'int (double, int)') cannot bind to a temporary of type 'int'}}
auto (&f5)() -> decltype(1+2) = 0; // expected-error{{non-const lvalue reference to type 'auto () -> decltype(1 + 2)' (aka 'auto () -> int') cannot bind to a temporary of type 'int'}}
|