1// RUN: %clang_cc1 -fsyntax-only -verify -pedantic-errors %s
2
3void f() {
4  int a;
5  struct S { int m; };
6  typedef S *T;
7
8  // Expressions.
9  T(a)->m = 7;
10  int(a)++; // expected-error {{assignment to cast is illegal}}
11  __extension__ int(a)++; // expected-error {{assignment to cast is illegal}}
12  __typeof(int)(a,5)<<a; // expected-error {{excess elements in scalar initializer}}
13  void(a), ++a;
14  if (int(a)+1) {}
15  for (int(a)+1;;) {} // expected-warning {{expression result unused}}
16  a = sizeof(int()+1);
17  a = sizeof(int(1));
18  typeof(int()+1) a2; // expected-error {{extension used}}
19  (int(1)); // expected-warning {{expression result unused}}
20
21  // type-id
22  (int())1; // expected-error {{C-style cast from 'int' to 'int ()' is not allowed}}
23
24  // Declarations.
25  int fd(T(a)); // expected-warning {{parentheses were disambiguated as a function declarator}}
26  T(*d)(int(p)); // expected-warning {{parentheses were disambiguated as a function declarator}} expected-note {{previous definition is here}}
27  typedef T(*td)(int(p));
28  extern T(*tp)(int(p));
29  T d3(); // expected-warning {{empty parentheses interpreted as a function declaration}} expected-note {{replace parentheses with an initializer}}
30  T d3v(void);
31  typedef T d3t();
32  extern T f3();
33  __typeof(*T()) f4(); // expected-warning {{empty parentheses interpreted as a function declaration}} expected-note {{replace parentheses with an initializer}}
34  typedef void *V;
35  __typeof(*V()) f5();
36  T multi1,
37    multi2(); // expected-warning {{empty parentheses interpreted as a function declaration}} expected-note {{replace parentheses with an initializer}}
38  T(d)[5]; // expected-error {{redefinition of 'd'}}
39  typeof(int[])(f) = { 1, 2 }; // expected-error {{extension used}}
40  void(b)(int);
41  int(d2) __attribute__(());
42  if (int(a)=1) {}
43  int(d3(int()));
44}
45
46struct RAII {
47  RAII();
48  ~RAII();
49};
50
51void func();
52namespace N {
53  struct S;
54
55  void emptyParens() {
56    RAII raii(); // expected-warning {{function declaration}} expected-note {{remove parentheses to declare a variable}}
57    int a, b, c, d, e, // expected-note {{change this ',' to a ';' to call 'func'}}
58    func(); // expected-warning {{function declaration}} expected-note {{replace parentheses with an initializer}}
59
60    S s(); // expected-warning {{function declaration}}
61  }
62}
63
64class C { };
65void fn(int(C)) { } // void fn(int(*fp)(C c)) { } expected-note{{candidate function}}
66                    // not: void fn(int C);
67int g(C);
68
69void foo() {
70  fn(1); // expected-error {{no matching function}}
71  fn(g); // OK
72}
73