math/test-math-isinff.cc

   1 /* Test for bug 19439.
   2    Copyright (C) 2016-2023 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #define _GNU_SOURCE 1
  20 #include <math.h>
  21 #include <stdio.h>
  22 #include <stdlib.h>
  23
  24 static int
  25 do_test (void)
  26 {
  27   /* Verify that isinff, isinfl, isnanf, and isnanlf are defined
  28      in the header under C++11 and can be called.  Without the
  29      header fix this test will not compile.  */
  30   if (isinff (1.0f)
  31       || !isinff (INFINITY)
  32       || isinfl (1.0L)
  33       || !isinfl (INFINITY)
  34       || isnanf (2.0f)
  35       || !isnanf (NAN)
  36       || isnanl (2.0L)
  37       || !isnanl (NAN)
  38       )
  39     {
  40       printf ("FAIL: Failed to call is* functions.\n");
  41       exit (1);
  42     }
  43   printf ("PASS: Able to call isinff, isinfl, isnanf, and isnanl.\n");
  44   exit (0);
  45 }
  46
  47 #define TEST_FUNCTION do_test ()
  48 #include "../test-skeleton.c"