gcc/testsuite/gcc.dg/dfp/c23-float-dfp-7.c

   1 /* Test DEC*_SNAN macros defined in <float.h> with DFP support.  */
   2 /* { dg-options "-std=c23" } */
   3
   4 #include <float.h>
   5
   6 #ifndef DEC32_SNAN
   7 # error "DEC32_SNAN not defined"
   8 #endif
   9
  10 #ifndef DEC64_SNAN
  11 # error "DEC64_SNAN not defined"
  12 #endif
  13
  14 #ifndef DEC128_SNAN
  15 # error "DEC128_SNAN not defined"
  16 #endif
  17
  18 volatile _Decimal32 d32 = DEC32_SNAN;
  19 volatile _Decimal64 d64 = DEC64_SNAN;
  20 volatile _Decimal128 d128 = DEC128_SNAN;
  21
  22 extern void abort (void);
  23 extern void exit (int);
  24
  25 int
  26 main (void)
  27 {
  28   (void) _Generic (DEC32_SNAN, _Decimal32 : 0);
  29   if (!__builtin_isnan (DEC32_SNAN))
  30     abort ();
  31   if (!__builtin_isnan (d32))
  32     abort ();
  33   (void) _Generic (DEC64_SNAN, _Decimal64 : 0);
  34   if (!__builtin_isnan (DEC64_SNAN))
  35     abort ();
  36   if (!__builtin_isnan (d64))
  37     abort ();
  38   (void) _Generic (DEC128_SNAN, _Decimal128 : 0);
  39   if (!__builtin_isnan (DEC128_SNAN))
  40     abort ();
  41   if (!__builtin_isnan (d128))
  42     abort ();
  43   exit (0);
  44 }