tests/test-isnanf.h

   1 /* Test of isnanf() substitute.
   2    Copyright (C) 2007-2025 Free Software Foundation, Inc.
   3
   4    This program is free software: you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation, either version 3 of the License, or
   7    (at your option) any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  16
  17 /* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
  18
  19 #include <limits.h>
  20
  21 #include "minus-zero.h"
  22 #include "infinity.h"
  23 #include "nan.h"
  24 #include "snan.h"
  25 #include "macros.h"
  26
  27 int
  28 main ()
  29 {
  30   /* Finite values.  */
  31   ASSERT (!isnanf (3.141f));
  32   ASSERT (!isnanf (3.141e30f));
  33   ASSERT (!isnanf (3.141e-30f));
  34   ASSERT (!isnanf (-2.718f));
  35   ASSERT (!isnanf (-2.718e30f));
  36   ASSERT (!isnanf (-2.718e-30f));
  37   ASSERT (!isnanf (0.0f));
  38   ASSERT (!isnanf (minus_zerof));
  39   /* Infinite values.  */
  40   ASSERT (!isnanf (Infinityf ()));
  41   ASSERT (!isnanf (- Infinityf ()));
  42   /* Quiet NaN.  */
  43   ASSERT (isnanf (NaNf ()));
  44 #if HAVE_SNANF
  45   /* Signalling NaN.  */
  46   ASSERT (isnanf (SNaNf ()));
  47 #endif
  48   return test_exit_status;
  49 }