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1 // RUN: %clang_cc1 -fsyntax-only -verify %s
2 void g();
3 
4 void f(); // expected-note 11{{candidate function}}
5 void f(int); // expected-note 11{{candidate function}}
6 
7 template <class T>
8 void t(T); // expected-note 3{{candidate function}} \
9            // expected-note 3{{candidate template ignored: could not match 'void' against 'int'}}
10 template <class T>
11 void t(T *); // expected-note 3{{candidate function}} \
12              // expected-note 3{{candidate template ignored: could not match 'void' against 'int'}}
13 
14 template<class T> void u(T);
15 
main()16 int main()
17 {
18   { bool b = (void (&)(char))f; } // expected-error{{does not match required type}}
19   { bool b = (void (*)(char))f; } // expected-error{{does not match required type}}
20 
21   { bool b = (void (&)(int))f; } //ok
22   { bool b = (void (*)(int))f; } //ok
23 
24   { bool b = static_cast<void (&)(char)>(f); } // expected-error{{does not match}}
25   { bool b = static_cast<void (*)(char)>(f); } // expected-error{{address of overloaded function}}
26 
27   { bool b = static_cast<void (&)(int)>(f); } //ok
28   { bool b = static_cast<void (*)(int)>(f); } //ok
29 
30 
31   { bool b = reinterpret_cast<void (&)(char)>(f); } // expected-error{{cannot resolve}}
32   { bool b = reinterpret_cast<void (*)(char)>(f); } // expected-error{{cannot resolve}}
33 
34   { bool b = reinterpret_cast<void (*)(char)>(g); } //ok
35   { bool b = static_cast<void (*)(char)>(g); } // expected-error{{not allowed}}
36 
37   { bool b = reinterpret_cast<void (&)(int)>(f); } // expected-error{{cannot resolve}}
38   { bool b = reinterpret_cast<void (*)(int)>(f); } // expected-error{{cannot resolve}}
39 
40   { bool b = (int (&)(char))t; } // expected-error{{does not match}}
41   { bool b = (int (*)(char))t; } // expected-error{{does not match}}
42 
43   { bool b = (void (&)(int))t; } //ok
44   { bool b = (void (*)(int))t; } //ok
45 
46   { bool b = static_cast<void (&)(char)>(t); } //ok
47   { bool b = static_cast<void (*)(char)>(t); } //ok
48 
49   { bool b = static_cast<void (&)(int)>(t); } //ok
50   { bool b = static_cast<void (*)(int)>(t); } //ok
51 
52 
53   { bool b = reinterpret_cast<void (&)(char)>(t); } // expected-error{{cannot resolve}}
54   { bool b = reinterpret_cast<void (*)(char)>(t); } // expected-error{{cannot resolve}}
55 
56   { bool b = reinterpret_cast<int (*)(char)>(g); } //ok
57   { bool b = static_cast<int (*)(char)>(t); } // expected-error{{cannot be static_cast}}
58   { bool b = static_cast<int (&)(char)>(t); } // expected-error{{does not match required}}
59 
60   { bool b = static_cast<void (&)(char)>(f); } // expected-error{{does not match}}
61 
62   {
63     // The error should be reported when casting overloaded function to the
64     // compatible function type (not to be confused with function pointer or
65     // function reference type.)
66     typedef void (FnType)(int);
67     FnType a = static_cast<FnType>(f); // expected-error{{address of overloaded function}}
68     FnType b = (FnType)(f); // expected-error{{address of overloaded function}}
69   }
70 }
71