1 // RUN: %clang_cc1 %s -verify -fsyntax-only -Wno-strict-prototypes 2 3 void foo(void); foo(void)4void foo(void) {} 5 void foo(void); 6 void foo(void); // expected-note {{previous declaration is here}} 7 8 void foo(int); // expected-error {{conflicting types for 'foo'}} 9 funcdef()10int funcdef() 11 { 12 return 0; 13 } 14 15 int funcdef(); 16 funcdef2()17int funcdef2() { return 0; } // expected-note {{previous definition is here}} funcdef2()18int funcdef2() { return 0; } // expected-error {{redefinition of 'funcdef2'}} 19 20 // PR2502 21 void (*f)(void); 22 void (*f)() = 0; 23 24 typedef __attribute__(( ext_vector_type(2) )) int Vi2; 25 typedef __attribute__(( ext_vector_type(2) )) float Vf2; 26 27 Vf2 g0; // expected-note {{previous definition is here}} 28 Vi2 g0; // expected-error {{redefinition of 'g0'}} 29 30 _Complex int g1; // expected-note {{previous definition is here}} 31 _Complex float g1; // expected-error {{redefinition of 'g1'}} 32 33 extern char i6096412[10]; 34 extern char i6096412[]; foo6096412(void)35void foo6096412(void) { 36 int x = sizeof(i6096412); 37 } 38 39 40 typedef int test1_IA[]; 41 typedef int test1_A10[10]; 42 static test1_A10 *test1_f(void); test1_g(void)43void test1_g(void) 44 { 45 { 46 extern test1_IA *test1_f(void); 47 } 48 (void)sizeof(*test1_f()); 49 } 50 51 typedef int test2_IA[]; 52 typedef int test2_A10[10]; 53 54 static test2_A10 *test2_f(void); 55 static test2_IA *test2_f(void); 56 test2_g(void)57void test2_g(void) 58 { 59 (void)sizeof(*test2_f()); 60 } 61 62 int (*test3_f())[10]; 63 int (*test3_f())[]; 64 int test3_k = sizeof(*test3_f()); 65 66 void test4_f(int); test4_f(a)67void test4_f(a) 68 char a; 69 { 70 int v[sizeof(a) == 1 ? 1 : -1]; 71 } 72 73 int test5_f(int (*)[10]); test5_f(int (* x)[])74int test5_f(int (*x)[]) { 75 return sizeof(*x); // expected-error {{invalid application of 'sizeof' to an incomplete type 'int[]'}} 76 } 77 78 void test6_f(int (*a)[11]); 79 void test6_f(a) 80 int (*a)[]; 81 {} test6_g()82void test6_g() { 83 int arr[10]; 84 test6_f(&arr); // expected-warning {{incompatible pointer types passing 'int (*)[10]' to parameter of type 'int (*)[11]}} 85 } 86 87 void test7_f(int (*)[10]); 88 void test7_f(int (*)[]); // expected-note {{passing argument to parameter here}} test7_g()89void test7_g() { 90 int x[5]; 91 test7_f(&x); // expected-warning {{incompatible pointer types passing 'int (*)[5]' to parameter of type 'int (*)[10]}} 92 } 93 94 char d; 95 char test8_gh62447[d.undef == 8]; // expected-error {{member reference base type 'char' is not a structure or union}} 96 char test8_gh62447[d.undef == 4]; // expected-error {{member reference base type 'char' is not a structure or union}} 97