| // PR c++/34198 |
| // { dg-do compile } |
| // { dg-options "-O2 -Wconversion -Wsign-conversion" } |
| |
| signed char sc; |
| unsigned char uc; |
| short int ss; |
| unsigned short int us; |
| int si; |
| unsigned int ui; |
| |
| void test1 (void) |
| { |
| int a = uc & 0xff; |
| int b = sc & 0x7f; |
| int c = 0xff & uc; |
| int d = 0x7f & sc; |
| int e = uc & sc; |
| unsigned char f = (int) uc; |
| signed char g = (int) sc; |
| unsigned char h = (unsigned int) (short int) uc; |
| signed char i = (int) (unsigned short int) sc; // { dg-warning "may change value" "" { target { ! short_eq_int } } } |
| unsigned char j = (unsigned int) (short int) us; // { dg-warning "may change value" } |
| signed char k = (int) (unsigned short int) ss; // { dg-warning "may change value" } |
| } |
| |
| void test2 (void) |
| { |
| signed char a = (unsigned char) sc; // { dg-warning "may change the sign" } |
| unsigned char b = (signed char) uc; // { dg-warning "may change the sign" } |
| signed char c = (int) (unsigned char) sc; // { dg-warning "may change the sign" } |
| unsigned char d = (int) (signed char) uc; // { dg-warning "may change the sign" } |
| int e = (unsigned int) si; // { dg-warning "may change the sign" } |
| unsigned int f = (int) ui; // { dg-warning "may change the sign" } |
| } |
