1// PR c++/34198
2// { dg-do compile }
3// { dg-options "-O2 -Wconversion -Wsign-conversion" }
4
5signed char sc;
6unsigned char uc;
7short int ss;
8unsigned short int us;
9int si;
10unsigned int ui;
11
12void test1 (void)
13{
14  int a = uc & 0xff;
15  int b = sc & 0x7f;
16  int c = 0xff & uc;
17  int d = 0x7f & sc;
18  int e = uc & sc;
19  unsigned char f = (int) uc;
20  signed char g = (int) sc;
21  unsigned char h = (unsigned int) (short int) uc;
22  signed char i = (int) (unsigned short int) sc;	// { dg-warning "may alter its value" }
23  unsigned char j = (unsigned int) (short int) us;	// { dg-warning "may alter its value" }
24  signed char k = (int) (unsigned short int) ss;	// { dg-warning "may alter its value" }
25}
26
27void test2 (void)
28{
29  signed char a = (unsigned char) sc;		// { dg-warning "may change the sign" }
30  unsigned char b = (signed char) uc;		// { dg-warning "may change the sign" }
31  signed char c = (int) (unsigned char) sc;	// { dg-warning "may change the sign" }
32  unsigned char d = (int) (signed char) uc;	// { dg-warning "may change the sign" }
33  int e = (unsigned int) si;			// { dg-warning "may change the sign" }
34  unsigned int f = (int) ui;			// { dg-warning "may change the sign" }
35}
36