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 -std=gnu++98 %s
3 // RUN: %clang_cc1 -Wno-int-to-pointer-cast -fsyntax-only -verify -pedantic-errors -std=gnu++11 %s
4 // RUN: %clang_cc1 -Wno-int-to-pointer-cast -fsyntax-only -verify -pedantic-errors -x objective-c++ %s
5
f()6 void f() {
7 int a;
8 struct S { int m; };
9 typedef S *T;
10
11 // Expressions.
12 T(a)->m = 7;
13 int(a)++; // expected-error {{assignment to cast is illegal}}
14 __extension__ int(a)++; // expected-error {{assignment to cast is illegal}}
15 __typeof(int)(a,5)<<a; // expected-error {{excess elements in scalar initializer}}
16 void(a), ++a;
17 if (int(a)+1) {}
18 for (int(a)+1;;) {} // expected-warning {{expression result unused}}
19 a = sizeof(int()+1);
20 a = sizeof(int(1));
21 typeof(int()+1) a2; // expected-error {{extension used}}
22 (int(1)); // expected-warning {{expression result unused}}
23
24 // type-id
25 (int())1; // expected-error {{C-style cast from 'int' to 'int ()' is not allowed}}
26
27 // Declarations.
28 int fd(T(a)); // expected-warning {{disambiguated as a function declaration}} expected-note{{add a pair of parentheses}}
29 T(*d)(int(p)); // expected-note {{previous}}
30 typedef T td(int(p));
31 extern T tp(int(p));
32 T d3(); // expected-warning {{empty parentheses interpreted as a function declaration}} expected-note {{replace parentheses with an initializer}}
33 T d3v(void);
34 typedef T d3t();
35 extern T f3();
36 __typeof(*T()) f4(); // expected-warning {{empty parentheses interpreted as a function declaration}} expected-note {{replace parentheses with an initializer}}
37 typedef void *V;
38 __typeof(*V()) f5(); // expected-error {{ISO C++ does not allow indirection on operand of type 'V' (aka 'void *')}}
39 T multi1,
40 multi2(); // expected-warning {{empty parentheses interpreted as a function declaration}} expected-note {{replace parentheses with an initializer}}
41 T(d)[5]; // expected-error {{redefinition of 'd'}}
42 typeof(int[])(f) = { 1, 2 }; // expected-error {{extension used}}
43 void(b)(int);
44 int(d2) __attribute__(());
45 if (int(a)=1) {}
46 int(d3(int()));
47 }
48
49 struct RAII {
50 RAII();
51 ~RAII();
52 };
53
54 void func();
55 void func2(short);
56 namespace N {
57 struct S;
58
emptyParens()59 void emptyParens() {
60 RAII raii(); // expected-warning {{function declaration}} expected-note {{remove parentheses to declare a variable}}
61 int a, b, c, d, e, // expected-note {{change this ',' to a ';' to call 'func'}}
62 func(); // expected-warning {{function declaration}} expected-note {{replace parentheses with an initializer}}
63
64 S s(); // expected-warning {{function declaration}}
65 #if __cplusplus >= 201103L
66 // expected-note@-2 {{replace parentheses with an initializer to declare a variable}}
67 #endif
68 }
nonEmptyParens()69 void nonEmptyParens() {
70 int f = 0, // g = 0; expected-note {{change this ',' to a ';' to call 'func2'}}
71 func2(short(f)); // expected-warning {{function declaration}} expected-note {{add a pair of parentheses}}
72 }
73 }
74
75 class C { };
fn(int (C))76 void fn(int(C)) { } // void fn(int(*fp)(C c)) { } expected-note{{candidate function}}
77 // not: void fn(int C);
78 int g(C);
79
foo()80 void foo() {
81 fn(1); // expected-error {{no matching function}}
82 fn(g); // OK
83 }
84
85 namespace PR11874 {
86 void foo(); // expected-note 3 {{class 'foo' is hidden by a non-type declaration of 'foo' here}}
87 class foo {};
88 class bar {
bar()89 bar() {
90 const foo* f1 = 0; // expected-error {{must use 'class' tag to refer to type 'foo' in this scope}}
91 foo* f2 = 0; // expected-error {{must use 'class' tag to refer to type 'foo' in this scope}}
92 foo f3; // expected-error {{must use 'class' tag to refer to type 'foo' in this scope}}
93 }
94 };
95
96 int baz; // expected-note 2 {{class 'baz' is hidden by a non-type declaration of 'baz' here}}
97 class baz {};
fizbin()98 void fizbin() {
99 const baz* b1 = 0; // expected-error {{must use 'class' tag to refer to type 'baz' in this scope}}
100 baz* b2; // expected-error {{use of undeclared identifier 'b2'}}
101 baz b3; // expected-error {{must use 'class' tag to refer to type 'baz' in this scope}}
102 }
103 }
104