1 // RUN: %clang_cc1 -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 {{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 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 { }; 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 69 void foo() { 70 fn(1); // expected-error {{no matching function}} 71 fn(g); // OK 72 } 73
