math/test-math-isinff.cc

   1 /* Test for bug 19439.
   2    Copyright (C) 2016-2021 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Contributed by Marek Polacek <polacek@redhat.com>, 2012.
   5
   6    The GNU C Library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Lesser General Public
   8    License as published by the Free Software Foundation; either
   9    version 2.1 of the License, or (at your option) any later version.
  10
  11    The GNU C Library is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14    Lesser General Public License for more details.
  15
  16    You should have received a copy of the GNU Lesser General Public
  17    License along with the GNU C Library; if not, see
  18    <https://www.gnu.org/licenses/>.  */
  19
  20 #define _GNU_SOURCE 1
  21 #include <math.h>
  22 #include <stdio.h>
  23 #include <stdlib.h>
  24
  25 static int
  26 do_test (void)
  27 {
  28   /* Verify that isinff, isinfl, isnanf, and isnanlf are defined
  29      in the header under C++11 and can be called.  Without the
  30      header fix this test will not compile.  */
  31   if (isinff (1.0f)
  32       || !isinff (INFINITY)
  33       || isinfl (1.0L)
  34       || !isinfl (INFINITY)
  35       || isnanf (2.0f)
  36       || !isnanf (NAN)
  37       || isnanl (2.0L)
  38       || !isnanl (NAN)
  39       )
  40     {
  41       printf ("FAIL: Failed to call is* functions.\n");
  42       exit (1);
  43     }
  44   printf ("PASS: Able to call isinff, isinfl, isnanf, and isnanl.\n");
  45   exit (0);
  46 }
  47
  48 #define TEST_FUNCTION do_test ()
  49 #include "../test-skeleton.c"