24 lines · c
1// RUN: %clang_cc1 %s -verify -fsyntax-only2// RUN: %clang_cc1 %s -verify -fsyntax-only -fno-signed-char3 4int a(int* x); // expected-note{{passing argument to parameter 'x' here}}5int 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 7signed 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 16char *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