gcc/testsuite/gcc.dg/c2x-float-2.c

   1 /* Test INFINITY macro.  Generic test.  */
   2 /* { dg-do run } */
   3 /* { dg-options "-std=c2x -w" } */
   4 /* { dg-add-options ieee } */
   5 /* { dg-require-effective-target inff } */
   6
   7 #include <float.h>
   8
   9 #ifndef INFINITY
  10 #error "INFINITY undefined"
  11 #endif
  12
  13 extern void abort (void);
  14 extern void exit (int);
  15
  16 int
  17 main (void)
  18 {
  19   (void) _Generic (INFINITY, float : 0);
  20   if (!(INFINITY >= FLT_MAX))
  21     abort ();
  22   exit (0);
  23 }