1  /* Test for printf formats and bit-fields: bug 22421.  */
       2  /* Origin: Joseph Myers <joseph@codesourcery.com> */
       3  /* { dg-do compile } */
       4  /* { dg-options "-std=gnu99 -Wformat" } */
       5  /* { dg-require-effective-target int32plus } */
       6  
       7  #include "format.h"
       8  
       9  struct s {
      10    unsigned int u1 : 1;
      11    signed int s1 : 1;
      12    unsigned int u15 : 15;
      13    signed int s15 : 15;
      14    unsigned int u16 : 16;
      15    signed int s16 : 16;
      16    unsigned long u31 : 31;
      17    signed long s31 : 31;
      18    unsigned long u32 : 32;
      19    signed long s32 : 32;
      20    unsigned long long u48 : 48;
      21  } x;
      22  
      23  void
      24  foo (void)
      25  {
      26    printf ("%d%u", x.u1, x.u1);
      27    printf ("%d%u", x.s1, x.s1);
      28    printf ("%d%u", x.u15, x.u15);
      29    printf ("%d%u", x.s15, x.s15);
      30    printf ("%d%u", x.u16, x.u16);
      31    printf ("%d%u", x.s16, x.s16);
      32  #if __INT_MAX__ > 32767
      33    /* If integers are 16 bits, there doesn't seem to be a way of
      34       printing these without getting an error.  */
      35    printf ("%d%u", x.u31, x.u31);
      36    printf ("%d%u", x.s31, x.s31);
      37  #endif
      38  #if __LONG_MAX__ > 2147483647 && __INT_MAX__ >= 2147483647
      39    /* If long is wider than 32 bits, the 32-bit bit-fields are int or
      40       unsigned int or promote to those types.  Otherwise, long is 32
      41       bits and the bit-fields are of type plain long or unsigned
      42       long.  */
      43    printf ("%d%u", x.u32, x.u32);
      44    printf ("%d%u", x.s32, x.s32);
      45  #else
      46    printf ("%ld%lu", x.u32, x.u32);
      47    printf ("%ld%lu", x.s32, x.s32);
      48  #endif
      49    printf ("%llu", x.u48); /* { dg-warning "15:has type '.*unsigned int:48'" } */
      50    printf ("%llu", (unsigned long long)x.u48);
      51  }