gcc/testsuite/gcc.dg/c99-bool-4.c

   1 /* Test macro expansions in <stdbool.h> in C99.  */
   2 /* { dg-do run } */
   3 /* { dg-options "-std=c99 -pedantic-errors" } */
   4
   5 #include <stdbool.h>
   6
   7 #define str(x) xstr(x)
   8 #define xstr(x) #x
   9
  10 extern void abort (void);
  11 extern void exit (int);
  12 extern int strcmp (const char *, const char *);
  13
  14 #if false - 1 >= 0
  15 #error "false unsigned in #if"
  16 #endif
  17
  18 #if false != 0
  19 #error "false not 0 in #if"
  20 #endif
  21
  22 #if true - 2 >= 0
  23 #error "true unsigned in #if"
  24 #endif
  25
  26 #if true != 1
  27 #error "true not 1 in #if"
  28 #endif
  29
  30 int
  31 main (void)
  32 {
  33   if (strcmp (str (bool), "_Bool") != 0)
  34     abort ();
  35   if (true != 1)
  36     abort ();
  37   if (strcmp (str (true), "1") != 0)
  38     abort ();
  39   if (false != 0)
  40     abort ();
  41   if (strcmp (str (false), "0") != 0)
  42     abort ();
  43   if (strcmp (str (__bool_true_false_are_defined), "1") != 0)
  44     abort ();
  45   exit (0);
  46 }