tests/test-hypot-ieee.h

   1 /* Test of hypot*() function family.
   2    Copyright (C) 2012-2020 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 static void
  18 test_function (void)
  19 {
  20   /* [MX] shaded specification in POSIX.  */
  21
  22   /* Infinity.  */
  23   ASSERT (HYPOT (INFINITY, L_(2.0)) == INFINITY);
  24   ASSERT (HYPOT (- INFINITY, L_(2.0)) == INFINITY);
  25   ASSERT (HYPOT (INFINITY, - L_(2.0)) == INFINITY);
  26   ASSERT (HYPOT (- INFINITY, - L_(2.0)) == INFINITY);
  27   ASSERT (HYPOT (L_(2.0), INFINITY) == INFINITY);
  28   ASSERT (HYPOT (L_(2.0), - INFINITY) == INFINITY);
  29   ASSERT (HYPOT (- L_(2.0), INFINITY) == INFINITY);
  30   ASSERT (HYPOT (- L_(2.0), - INFINITY) == INFINITY);
  31
  32   /* Mixed Infinity and NaN.  */
  33   ASSERT (HYPOT (INFINITY, NAN) == INFINITY);
  34   ASSERT (HYPOT (- INFINITY, NAN) == INFINITY);
  35   ASSERT (HYPOT (NAN, INFINITY) == INFINITY);
  36   ASSERT (HYPOT (NAN, - INFINITY) == INFINITY);
  37
  38   /* NaN.  */
  39   ASSERT (ISNAN (HYPOT (NAN, L_(2.0))));
  40   ASSERT (ISNAN (HYPOT (NAN, - L_(2.0))));
  41   ASSERT (ISNAN (HYPOT (L_(2.0), NAN)));
  42   ASSERT (ISNAN (HYPOT (- L_(2.0), NAN)));
  43 }