1 // RUN: %clang_cc1 %s -fsyntax-only -verify -std=c++11
2
3 struct X {};
4 typedef X foo_t;
5
6 foo_t *ptr;
7 char c1 = ptr; // expected-error{{'foo_t *' (aka 'X *')}}
8
9 const foo_t &ref = foo_t();
10 char c2 = ref; // expected-error{{'const foo_t' (aka 'const X')}}
11
12 // deduced auto should not produce an aka.
13 auto aut = X();
14 char c3 = aut; // expected-error{{from 'X' to 'char'}}
15
16 // There are two classes named Foo::foo here. Make sure the message gives
17 // a way to them apart.
18 namespace Foo {
19 class foo {};
20 }
21
22 namespace bar {
23 namespace Foo {
24 class foo;
25 }
26 void f(Foo::foo* x); // expected-note{{passing argument to parameter 'x' here}}
27 }
28
test(Foo::foo * x)29 void test(Foo::foo* x) {
30 bar::f(x); // expected-error{{cannot initialize a parameter of type 'Foo::foo *' (aka 'bar::Foo::foo *') with an lvalue of type 'Foo::foo *'}}
31 }
32
33 namespace ns {
34 struct str {
methodns::str35 static void method(struct data *) {}
36 };
37 }
38
39 struct data { int i; };
40
41 typedef void (*callback)(struct data *);
42
helper(callback cb)43 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}}
44
test()45 void test() {
46 helper(&ns::str::method); // expected-error{{no matching function for call to 'helper'}}
47 }
48
49 template <typename T>
50 class A {};
51
52 int a1 = A<decltype(1 + 2)>(); // expected-error{{no viable conversion from 'A<decltype(1 + 2)>' (aka 'A<int>') to 'int'}}
53 int a2 = A<A<decltype(1 + 2)>>(); // expected-error{{no viable conversion from 'A<A<decltype(1 + 2)> >' (aka 'A<A<int> >') to 'int'}}
54 int a3 = A<__typeof(1 + 2)>(); // expected-error{{no viable conversion from 'A<typeof (1 + 2)>' (aka 'A<int>') to 'int'}}
55 int a4 = A<A<__typeof(1 + 2)>>(); // expected-error{{no viable conversion from 'A<A<typeof (1 + 2)> >' (aka 'A<A<int> >') to 'int'}}
56
57 using B = A<decltype(1+2)>;
58 int a5 = B(); // expected-error{{no viable conversion from 'B' (aka 'A<int>') to 'int'}}
59
60 decltype(void()) (&f1)() = 0; // expected-error{{non-const lvalue reference to type 'decltype(void()) ()' (aka 'void ()') cannot bind to a temporary of type 'int'}}
61 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'}}
62 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'}}
63 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'}}
64 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'}}
65