1 // RUN: %clang_cc1 -Wno-int-to-pointer-cast -fsyntax-only -verify -pedantic-errors %s
2 // RUN: %clang_cc1 -Wno-int-to-pointer-cast -fsyntax-only -verify -pedantic-errors -x objective-c++ %s
3
f()4 void f() {
5 int a;
6 struct S { int m; };
7 typedef S *T;
8
9 // Expressions.
10 T(a)->m = 7;
11 int(a)++; // expected-error {{assignment to cast is illegal}}
12 __extension__ int(a)++; // expected-error {{assignment to cast is illegal}}
13 __typeof(int)(a,5)<<a; // expected-error {{excess elements in scalar initializer}}
14 void(a), ++a;
15 if (int(a)+1) {}
16 for (int(a)+1;;) {} // expected-warning {{expression result unused}}
17 a = sizeof(int()+1);
18 a = sizeof(int(1));
19 typeof(int()+1) a2; // expected-error {{extension used}}
20 (int(1)); // expected-warning {{expression result unused}}
21
22 // type-id
23 (int())1; // expected-error {{C-style cast from 'int' to 'int ()' is not allowed}}
24
25 // Declarations.
26 int fd(T(a)); // expected-warning {{disambiguated as a function declaration}} expected-note{{add a pair of parentheses}}
27 T(*d)(int(p)); // expected-note {{previous}}
28 typedef T td(int(p));
29 extern T tp(int(p));
30 T d3(); // expected-warning {{empty parentheses interpreted as a function declaration}} expected-note {{replace parentheses with an initializer}}
31 T d3v(void);
32 typedef T d3t();
33 extern T f3();
34 __typeof(*T()) f4(); // expected-warning {{empty parentheses interpreted as a function declaration}} expected-note {{replace parentheses with an initializer}}
35 typedef void *V;
36 __typeof(*V()) f5(); // expected-error {{ISO C++ does not allow indirection on operand of type 'V' (aka 'void *')}}
37 T multi1,
38 multi2(); // expected-warning {{empty parentheses interpreted as a function declaration}} expected-note {{replace parentheses with an initializer}}
39 T(d)[5]; // expected-error {{redefinition of 'd'}}
40 typeof(int[])(f) = { 1, 2 }; // expected-error {{extension used}}
41 void(b)(int);
42 int(d2) __attribute__(());
43 if (int(a)=1) {}
44 int(d3(int()));
45 }
46
47 struct RAII {
48 RAII();
49 ~RAII();
50 };
51
52 void func();
53 void func2(short);
54 namespace N {
55 struct S;
56
emptyParens()57 void emptyParens() {
58 RAII raii(); // expected-warning {{function declaration}} expected-note {{remove parentheses to declare a variable}}
59 int a, b, c, d, e, // expected-note {{change this ',' to a ';' to call 'func'}}
60 func(); // expected-warning {{function declaration}} expected-note {{replace parentheses with an initializer}}
61
62 S s(); // expected-warning {{function declaration}}
63 }
nonEmptyParens()64 void nonEmptyParens() {
65 int f = 0, // g = 0; expected-note {{change this ',' to a ';' to call 'func2'}}
66 func2(short(f)); // expected-warning {{function declaration}} expected-note {{add a pair of parentheses}}
67 }
68 }
69
70 class C { };
fn(int (C))71 void fn(int(C)) { } // void fn(int(*fp)(C c)) { } expected-note{{candidate function}}
72 // not: void fn(int C);
73 int g(C);
74
foo()75 void foo() {
76 fn(1); // expected-error {{no matching function}}
77 fn(g); // OK
78 }
79
80 namespace PR11874 {
81 void foo(); // expected-note 3 {{class 'foo' is hidden by a non-type declaration of 'foo' here}}
82 class foo {};
83 class bar {
bar()84 bar() {
85 const foo* f1 = 0; // expected-error {{must use 'class' tag to refer to type 'foo' in this scope}}
86 foo* f2 = 0; // expected-error {{must use 'class' tag to refer to type 'foo' in this scope}}
87 foo f3; // expected-error {{must use 'class' tag to refer to type 'foo' in this scope}}
88 }
89 };
90
91 int baz; // expected-note 2 {{class 'baz' is hidden by a non-type declaration of 'baz' here}}
92 class baz {};
fizbin()93 void fizbin() {
94 const baz* b1 = 0; // expected-error {{must use 'class' tag to refer to type 'baz' in this scope}}
95 baz* b2; // expected-error {{use of undeclared identifier 'b2'}}
96 baz b3; // expected-error {{must use 'class' tag to refer to type 'baz' in this scope}}
97 }
98 }
99