math/test-math-iscanonical.cc

   1 /* Test for the C++ implementation of iscanonical.
   2    Copyright (C) 2017-2022 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
  23 static int errors;
  24
  25 template <class T>
  26 static void
  27 check_type ()
  28 {
  29   T val = 0;
  30
  31   /* Check if iscanonical is available in C++ mode (bug 22235).  */
  32   if (iscanonical (val) == 0)
  33     errors++;
  34 }
  35
  36 static int
  37 do_test (void)
  38 {
  39   check_type<float> ();
  40   check_type<double> ();
  41   check_type<long double> ();
  42 #if __HAVE_DISTINCT_FLOAT128
  43   check_type<_Float128> ();
  44 #endif
  45   return errors != 0;
  46 }
  47
  48 #include <support/test-driver.c>