1 // RUN: %clang_cc1 -fsyntax-only -verify -pedantic-errors %s
2
f()3 void 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
46 struct RAII {
47 RAII();
48 ~RAII();
49 };
50
51 void func();
52 namespace N {
53 struct S;
54
emptyParens()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
64 class C { };
fn(int (C))65 void fn(int(C)) { } // void fn(int(*fp)(C c)) { } expected-note{{candidate function}}
66 // not: void fn(int C);
67 int g(C);
68
foo()69 void foo() {
70 fn(1); // expected-error {{no matching function}}
71 fn(g); // OK
72 }
73