1  /* Test limits for _Bool in <limits.h> in C2x.  */
       2  /* { dg-do compile } */
       3  /* { dg-options "-std=c2x" } */
       4  
       5  #include <limits.h>
       6  
       7  #ifndef BOOL_MAX
       8  # error "missing BOOL_MAX"
       9  #endif
      10  
      11  #ifndef BOOL_WIDTH
      12  # error "missing BOOL_WIDTH"
      13  #endif
      14  
      15  /* In principle _Bool can support values wider than 1 bit, stored via
      16     type punning, but this is not supported by GCC.  */
      17  
      18  _Static_assert (BOOL_MAX == 1, "bad BOOL_MAX");
      19  _Static_assert (BOOL_WIDTH == 1, "bad BOOL_WIDTH");