1//RUN: %clang_cc1 -fsyntax-only -verify %s
2
3namespace PR16570 {
4  int f1(int, int);
5  int f2(const int, int);
6  int f3(int&, int);
7  int f4(const int&, int);
8
9  void good() {
10    int(*g1)(int, int) = f1;
11    int(*g2)(const int, int) = f1;
12    int(*g3)(volatile int, int) = f1;
13    int(*g4)(int, int) = f2;
14    int(*g5)(const int, int) = f2;
15    int(*g6)(volatile int, int) = f2;
16    int(*g7)(int&, int) = f3;
17    int(*g8)(const int&, int) = f4;
18  }
19
20  void bad() {
21    void (*g1)(int, int) = f1;
22    // expected-error@-1 {{different return type ('void' vs 'int'}}
23    const int (*g2)(int, int) = f1;
24    // expected-error@-1 {{different return type ('const int' vs 'int')}}
25
26    int (*g3)(char, int) = f1;
27    // expected-error@-1 {{type mismatch at 1st parameter ('char' vs 'int')}}
28    int (*g4)(int, char) = f1;
29    // expected-error@-1 {{type mismatch at 2nd parameter ('char' vs 'int')}}
30
31    int (*g5)(int) = f1;
32    // expected-error@-1 {{different number of parameters (1 vs 2)}}
33
34    int (*g6)(int, int, int) = f1;
35    // expected-error@-1 {{different number of parameters (3 vs 2)}}
36
37    int (*g7)(const int, char) = f1;
38    // expected-error@-1 {{type mismatch at 2nd parameter ('char' vs 'int')}}
39    int (*g8)(int, char) = f2;
40    // expected-error@-1 {{type mismatch at 2nd parameter ('char' vs 'int')}}
41    int (*g9)(const int&, char) = f3;
42    // expected-error@-1 {{type mismatch at 1st parameter ('const int &' vs 'int &')}}
43    int (*g10)(int&, char) = f4;
44    // expected-error@-1 {{type mismatch at 1st parameter ('int &' vs 'const int &')}}
45  }
46
47  typedef void (*F)(const char * __restrict__, int);
48  void g(const char *, unsigned);
49  F f = g;
50  // expected-error@-1 {{type mismatch at 2nd parameter ('int' vs 'unsigned int')}}
51
52}
53