libstdc++-v3/testsuite/tr1/5_numerical_facilities/special_functions/19_legendre/check_nan.cc

   1 // { dg-require-c-std "" }
   2 // { dg-options "-mieee" { target sh*-*-* } }
   3
   4 // 2007-01-10  Edward Smith-Rowland <3dw4rd@verizon.net>
   5 //
   6 // Copyright (C) 2006-2007 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 2, 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 COPYING.  If not, write to the Free
  21 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  22 // USA.
  23
  24 // 5.2.1.19 legendre
  25
  26 #include <tr1/cmath>
  27 #include <testsuite_hooks.h>
  28
  29 void
  30 test01()
  31 {
  32
  33   float xf = std::numeric_limits<float>::quiet_NaN();
  34   double xd = std::numeric_limits<double>::quiet_NaN();
  35   long double xl = std::numeric_limits<long double>::quiet_NaN();
  36
  37   unsigned int l = 2;
  38
  39   float a = std::tr1::legendre(l, xf);
  40   float b = std::tr1::legendref(l, xf);
  41   double c = std::tr1::legendre(l, xd);
  42   long double d = std::tr1::legendre(l, xl);
  43   long double e = std::tr1::legendrel(l, xl);
  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 int
  55 main()
  56 {
  57   test01();
  58   return 0;
  59 }
  60