gcc/testsuite/gcc.dg/c2x-bool-limits-1.c

   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");