libstdc++-v3/testsuite/special_functions/10_cyl_neumann/check_nan.cc

   1 // { dg-require-c-std "" }
   2 // { dg-add-options ieee }
   3 // { dg-options "-D__STDCPP_WANT_MATH_SPEC_FUNCS__" }
   4
   5 // Copyright (C) 2016 Free Software Foundation, Inc.
   6 //
   7 // This file is part of the GNU ISO C++ Library.  This library is free
   8 // software; you can redistribute it and/or modify it under the
   9 // terms of the GNU General Public License as published by the
  10 // Free Software Foundation; either version 3, or (at your option)
  11 // any later version.
  12 //
  13 // This library is distributed in the hope that it will be useful,
  14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 // GNU General Public License for more details.
  17 //
  18 // You should have received a copy of the GNU General Public License along
  19 // with this library; see the file COPYING3.  If not see
  20 // <http://www.gnu.org/licenses/>.
  21
  22 // 8.1.10 cyl_neumann
  23
  24 #include <cmath>
  25 #include <testsuite_hooks.h>
  26
  27 void
  28 test01()
  29 {
  30   float xf = std::numeric_limits<float>::quiet_NaN();
  31   double xd = std::numeric_limits<double>::quiet_NaN();
  32   long double xl = std::numeric_limits<long double>::quiet_NaN();
  33
  34   float nuf = 0.0F;
  35   double nud = 0.0;
  36   long double nul = 0.0L;
  37
  38   float a = std::cyl_neumann(nuf, xf);
  39   float b = std::cyl_neumannf(nuf, xf);
  40   double c = std::cyl_neumann(nud, xd);
  41   long double d = std::cyl_neumann(nul, xl);
  42   long double e = std::cyl_neumannl(nul, xl);
  43
  44   bool test [[gnu::unused]] = true;
  45   VERIFY(std::isnan(a));
  46   VERIFY(std::isnan(b));
  47   VERIFY(std::isnan(c));
  48   VERIFY(std::isnan(d));
  49   VERIFY(std::isnan(e));
  50
  51   return;
  52 }
  53
  54 void
  55 test02()
  56 {
  57   float xf = 1.0F;
  58   double xd = 1.0;
  59   long double xl = 1.0L;
  60
  61   float nuf = std::numeric_limits<float>::quiet_NaN();
  62   double nud = std::numeric_limits<double>::quiet_NaN();
  63   long double nul = std::numeric_limits<long double>::quiet_NaN();
  64
  65   float a = std::cyl_neumann(nuf, xf);
  66   float b = std::cyl_neumannf(nuf, xf);
  67   double c = std::cyl_neumann(nud, xd);
  68   long double d = std::cyl_neumann(nul, xl);
  69   long double e = std::cyl_neumannl(nul, xl);
  70
  71   bool test [[gnu::unused]] = true;
  72   VERIFY(std::isnan(a));
  73   VERIFY(std::isnan(b));
  74   VERIFY(std::isnan(c));
  75   VERIFY(std::isnan(d));
  76   VERIFY(std::isnan(e));
  77
  78   return;
  79 }
  80
  81 int
  82 main()
  83 {
  84   test01();
  85   test02();
  86   return 0;
  87 }
  88