libstdc++-v3/testsuite/special_functions/07_cyl_bessel_i/check_nan.cc

   1 // { dg-do run { target c++11 } }
   2 // { dg-require-c-std "" }
   3 // { dg-add-options ieee }
   4 // { dg-options "-D__STDCPP_WANT_MATH_SPEC_FUNCS__" }
   5
   6 // Copyright (C) 2016 Free Software Foundation, Inc.
   7 //
   8 // This file is part of the GNU ISO C++ Library.  This library is free
   9 // software; you can redistribute it and/or modify it under the
  10 // terms of the GNU General Public License as published by the
  11 // Free Software Foundation; either version 3, or (at your option)
  12 // any later version.
  13 //
  14 // This library is distributed in the hope that it will be useful,
  15 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 // GNU General Public License for more details.
  18 //
  19 // You should have received a copy of the GNU General Public License along
  20 // with this library; see the file COPYING3.  If not see
  21 // <http://www.gnu.org/licenses/>.
  22
  23 // 8.1.7 cyl_bessel_i
  24
  25 #include <cmath>
  26 #include <testsuite_hooks.h>
  27
  28 void
  29 test01()
  30 {
  31   float xf = std::numeric_limits<float>::quiet_NaN();
  32   double xd = std::numeric_limits<double>::quiet_NaN();
  33   long double xl = std::numeric_limits<long double>::quiet_NaN();
  34
  35   float nuf = 0.0F;
  36   double nud = 0.0;
  37   long double nul = 0.0L;
  38
  39   float a = std::cyl_bessel_i(nuf, xf);
  40   float b = std::cyl_bessel_if(nuf, xf);
  41   double c = std::cyl_bessel_i(nud, xd);
  42   long double d = std::cyl_bessel_i(nul, xl);
  43   long double e = std::cyl_bessel_il(nul, xl);
  44
  45   bool test [[gnu::unused]] = true;
  46   VERIFY(std::isnan(a));
  47   VERIFY(std::isnan(b));
  48   VERIFY(std::isnan(c));
  49   VERIFY(std::isnan(d));
  50   VERIFY(std::isnan(e));
  51
  52   return;
  53 }
  54
  55 void
  56 test02()
  57 {
  58   float xf = 1.0F;
  59   double xd = 1.0;
  60   long double xl = 1.0L;
  61
  62   float nuf = std::numeric_limits<float>::quiet_NaN();
  63   double nud = std::numeric_limits<double>::quiet_NaN();
  64   long double nul = std::numeric_limits<long double>::quiet_NaN();
  65
  66   float a = std::cyl_bessel_i(nuf, xf);
  67   float b = std::cyl_bessel_if(nuf, xf);
  68   double c = std::cyl_bessel_i(nud, xd);
  69   long double d = std::cyl_bessel_i(nul, xl);
  70   long double e = std::cyl_bessel_il(nul, xl);
  71
  72   bool test [[gnu::unused]] = true;
  73   VERIFY(std::isnan(a));
  74   VERIFY(std::isnan(b));
  75   VERIFY(std::isnan(c));
  76   VERIFY(std::isnan(d));
  77   VERIFY(std::isnan(e));
  78
  79   return;
  80 }
  81
  82 int
  83 main()
  84 {
  85   test01();
  86   test02();
  87   return 0;
  88 }
  89