1 // RUN: %clang_cc1 %s -verify -fsyntax-only
2 // RUN: %clang_cc1 %s -verify -fsyntax-only -fno-signed-char
3
4 int a(int* x); // expected-note{{passing argument to parameter 'x' here}}
b(unsigned * y)5 int b(unsigned* y) { return a(y); } // expected-warning {{passing 'unsigned int *' to parameter of type 'int *' converts between pointers to integer types with different sign}}
6
plainCharToSignedChar(signed char * arg)7 signed char *plainCharToSignedChar(signed char *arg) { // expected-note{{passing argument to parameter}}
8 extern char c;
9 signed char *p = &c; // expected-warning {{converts between pointers to integer types where one is of the unique plain 'char' type and the other is not}}
10 struct { signed char *p; } s = { &c }; // expected-warning {{converts between pointers to integer types where one is of the unique plain 'char' type and the other is not}}
11 p = &c; // expected-warning {{converts between pointers to integer types where one is of the unique plain 'char' type and the other is not}}
12 plainCharToSignedChar(&c); // expected-warning {{converts between pointers to integer types where one is of the unique plain 'char' type and the other is not}}
13 return &c; // expected-warning {{converts between pointers to integer types where one is of the unique plain 'char' type and the other is not}}
14 }
15
unsignedCharToPlainChar(char * arg)16 char *unsignedCharToPlainChar(char *arg) { // expected-note{{passing argument to parameter}}
17 extern unsigned char uc[];
18 char *p = uc; // expected-warning {{converts between pointers to integer types where one is of the unique plain 'char' type and the other is not}}
19 (void) (char *[]){ [42] = uc }; // expected-warning {{converts between pointers to integer types where one is of the unique plain 'char' type and the other is not}}
20 p = uc; // expected-warning {{converts between pointers to integer types where one is of the unique plain 'char' type and the other is not}}
21 unsignedCharToPlainChar(uc); // expected-warning {{converts between pointers to integer types where one is of the unique plain 'char' type and the other is not}}
22 return uc; // expected-warning {{converts between pointers to integer types where one is of the unique plain 'char' type and the other is not}}
23 }
24