gcc/testsuite/gcc.dg/c23-constexpr-8.c

   1 /* Test C23 constexpr.  Valid code, compilation tests, IEEE arithmetic.  */
   2 /* { dg-do compile } */
   3 /* { dg-options "-std=c23 -pedantic-errors" } */
   4 /* { dg-add-options ieee } */
   5 /* { dg-require-effective-target inff } */
   6
   7 constexpr float fi = __builtin_inf ();
   8 constexpr double di = __builtin_inff ();
   9 constexpr float fn = __builtin_nan ("");
  10 constexpr double dn = __builtin_nanf ("");
  11 constexpr float fns = __builtin_nansf ("");
  12 constexpr double dns = __builtin_nans ("");
  13 constexpr _Complex double cdns = __builtin_nans ("");
  14
  15 void
  16 f0 (void)
  17 {
  18   (constexpr float) { __builtin_inf () };
  19   (constexpr double) { __builtin_inff () };
  20   (constexpr float) { __builtin_nan ("") };
  21   (constexpr double) { __builtin_nanf ("") };
  22   (constexpr float) { __builtin_nansf ("") };
  23   (constexpr double) { __builtin_nans ("") };
  24   (constexpr _Complex double) { __builtin_nans ("") };
  25 }