1  /* PR c++/34198 */
       2  /* { dg-do compile } */
       3  /* { dg-options "-O2 -Wconversion" } */
       4  
       5  signed char sc;
       6  unsigned char uc;
       7  short int ss;
       8  unsigned short int us;
       9  int si;
      10  unsigned int ui;
      11  
      12  void 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 "conversion from .int. to .signed char. may change value" "" { target { int32plus } } } */
      23    unsigned char j = (unsigned int) (short int) us;	/* { dg-warning "may change value" } */
      24    signed char k = (int) (unsigned short int) ss;	/* { dg-warning "may change value" } */
      25  }
      26  
      27  void 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  }