libstdc++-v3/testsuite/tr1/5_numerical_facilities/special_functions/03_beta/check_nan.cc

   1 // { dg-require-c-std "" }
   2 // { dg-add-options ieee }
   3
   4 // 2007-01-10  Edward Smith-Rowland <3dw4rd@verizon.net>
   5 //
   6 // Copyright (C) 2007-2020 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 // 5.2.1.3 beta
  24
  25 #include <tr1/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 yf = 0.0F;
  36   double yd = 0.0;
  37   long double yl = 0.0L;
  38
  39   float a = std::tr1::beta(xf, yf);
  40   float b = std::tr1::betaf(xf, yf);
  41   double c = std::tr1::beta(xd, yd);
  42   long double d = std::tr1::beta(xl, yl);
  43   long double e = std::tr1::betal(xl, yl);
  44
  45   VERIFY(std::tr1::isnan<float>(a));
  46   VERIFY(std::tr1::isnan<float>(b));
  47   VERIFY(std::tr1::isnan<double>(c));
  48   VERIFY(std::tr1::isnan<long double>(d));
  49   VERIFY(std::tr1::isnan<long double>(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 yf = std::numeric_limits<float>::quiet_NaN();
  62   double yd = std::numeric_limits<double>::quiet_NaN();
  63   long double yl = std::numeric_limits<long double>::quiet_NaN();
  64
  65   float a = std::tr1::beta(xf, yf);
  66   float b = std::tr1::betaf(xf, yf);
  67   double c = std::tr1::beta(xd, yd);
  68   long double d = std::tr1::beta(xl, yl);
  69   long double e = std::tr1::betal(xl, yl);
  70
  71   VERIFY(std::tr1::isnan<float>(a));
  72   VERIFY(std::tr1::isnan<float>(b));
  73   VERIFY(std::tr1::isnan<double>(c));
  74   VERIFY(std::tr1::isnan<long double>(d));
  75   VERIFY(std::tr1::isnan<long double>(e));
  76
  77   return;
  78 }
  79
  80 int
  81 main()
  82 {
  83   test01();
  84   test02();
  85   return 0;
  86 }
  87