1 // RUN: %clang_cc1 -Wno-int-to-pointer-cast -fsyntax-only -verify -pedantic-errors %s 2 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 {{disambiguated as a function declaration}} expected-note{{add a pair of parentheses}} 26 T(*d)(int(p)); // expected-note {{previous}} 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 void func2(short); 53 namespace N { 54 struct S; 55 56 void emptyParens() { 57 RAII raii(); // expected-warning {{function declaration}} expected-note {{remove parentheses to declare a variable}} 58 int a, b, c, d, e, // expected-note {{change this ',' to a ';' to call 'func'}} 59 func(); // expected-warning {{function declaration}} expected-note {{replace parentheses with an initializer}} 60 61 S s(); // expected-warning {{function declaration}} 62 } 63 void nonEmptyParens() { 64 int f = 0, // g = 0; expected-note {{change this ',' to a ';' to call 'func2'}} 65 func2(short(f)); // expected-warning {{function declaration}} expected-note {{add a pair of parentheses}} 66 } 67 } 68 69 class C { }; 70 void fn(int(C)) { } // void fn(int(*fp)(C c)) { } expected-note{{candidate function}} 71 // not: void fn(int C); 72 int g(C); 73 74 void foo() { 75 fn(1); // expected-error {{no matching function}} 76 fn(g); // OK 77 } 78 79 namespace PR11874 { 80 void foo(); // expected-note 3 {{class 'foo' is hidden by a non-type declaration of 'foo' here}} 81 class foo {}; 82 class bar { 83 bar() { 84 const foo* f1 = 0; // expected-error {{must use 'class' tag to refer to type 'foo' in this scope}} 85 foo* f2 = 0; // expected-error {{must use 'class' tag to refer to type 'foo' in this scope}} 86 foo f3; // expected-error {{must use 'class' tag to refer to type 'foo' in this scope}} 87 } 88 }; 89 90 int baz; // expected-note 2 {{class 'baz' is hidden by a non-type declaration of 'baz' here}} 91 class baz {}; 92 void fizbin() { 93 const baz* b1 = 0; // expected-error {{must use 'class' tag to refer to type 'baz' in this scope}} 94 baz* b2; // expected-error {{use of undeclared identifier 'b2'}} 95 baz b3; // expected-error {{must use 'class' tag to refer to type 'baz' in this scope}} 96 } 97 } 98
