1 // RUN: %clang_cc1 -fsyntax-only -verify %s 2 3 void test() { 4 int x; 5 if (x) ++x; 6 if (int x=0) ++x; 7 8 typedef int arr[10]; 9 while (arr x=0) ; // expected-error {{an array type is not allowed here}} expected-error {{array initializer must be an initializer list}} 10 while (int f()=0) ; // expected-error {{a function type is not allowed here}} 11 12 struct S {} s; 13 if (s) ++x; // expected-error {{value of type 'struct S' is not contextually convertible to 'bool'}} 14 while (struct S x=s) ; // expected-error {{value of type 'struct S' is not contextually convertible to 'bool'}} 15 do ; while (s); // expected-error {{value of type 'struct S' is not contextually convertible to 'bool'}} 16 for (;s;) ; // expected-error {{value of type 'struct S' is not contextually convertible to 'bool'}} 17 switch (s) {} // expected-error {{statement requires expression of integer type ('struct S' invalid)}} 18 19 while (struct NewS *x=0) ; 20 while (struct S {} *x=0) ; // expected-error {{types may not be defined in conditions}} 21 while (struct {} *x=0) ; // expected-error {{types may not be defined in conditions}} 22 switch (enum {E} x=0) ; // expected-error {{types may not be defined in conditions}} expected-error {{cannot initialize}} \ 23 // expected-warning{{enumeration value 'E' not handled in switch}} 24 25 if (int x=0) { // expected-note 2 {{previous definition is here}} 26 int x; // expected-error {{redefinition of 'x'}} 27 } 28 else 29 int x; // expected-error {{redefinition of 'x'}} 30 while (int x=0) int x; // expected-error {{redefinition of 'x'}} expected-note {{previous definition is here}} 31 while (int x=0) { int x; } // expected-error {{redefinition of 'x'}} expected-note {{previous definition is here}} 32 for (int x; int x=0; ) ; // expected-error {{redefinition of 'x'}} expected-note {{previous definition is here}} 33 for (int x; ; ) int x; // expected-error {{redefinition of 'x'}} expected-note {{previous definition is here}} 34 for (; int x=0; ) int x; // expected-error {{redefinition of 'x'}} expected-note {{previous definition is here}} 35 for (; int x=0; ) { int x; } // expected-error {{redefinition of 'x'}} expected-note {{previous definition is here}} 36 switch (int x=0) { default: int x; } // expected-error {{redefinition of 'x'}} expected-note {{previous definition is here}} 37 } 38 39 int* get_int_ptr(); 40 41 void test2() { 42 float *ip; 43 if (int *ip = ip) { 44 } 45 } 46 47 // Make sure we do function/array decay. 48 void test3() { 49 if ("help") 50 (void) 0; 51 52 if (test3) 53 (void) 0; 54 } 55
