libstdc++-v3/testsuite/ext/random/logistic_distribution/cons/parms.cc

   1 // { dg-do run { target c++11 } }
   2 // { dg-require-cstdint "" }
   3 //
   4 // 2014-07-11  Edward M. Smith-Rowland  <3dw4rd@verizon.net>
   5 //
   6 // Copyright (C) 2014-2024 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 // Class template logistic_distribution
  24 // 26.5.1.6 Random number distribution requirements [rand.req.dist]
  25
  26 #include <ext/random>
  27 #include <testsuite_hooks.h>
  28
  29 void
  30 test01()
  31 {
  32   __gnu_cxx::logistic_distribution<> u(1.5, 3.0);
  33   VERIFY( u.a() == 1.5 );
  34   VERIFY( u.b() == 3.0 );
  35
  36   typedef __gnu_cxx::logistic_distribution<>::result_type result_type;
  37   VERIFY( u.min() == -std::numeric_limits<result_type>::max() );
  38   VERIFY( u.max() == std::numeric_limits<result_type>::max() );
  39 }
  40
  41 void
  42 test02()
  43 {
  44   using param_type = __gnu_cxx::logistic_distribution<>::param_type;
  45   const param_type p(1.5, 3.0);
  46   __gnu_cxx::logistic_distribution<> u(p);
  47   VERIFY( u.param() == p );
  48   VERIFY( u.param() != param_type{} );
  49
  50   typedef __gnu_cxx::logistic_distribution<>::result_type result_type;
  51   VERIFY( u.min() == -std::numeric_limits<result_type>::max() );
  52   VERIFY( u.max() == std::numeric_limits<result_type>::max() );
  53 }
  54
  55 int main()
  56 {
  57   test01();
  58   test02();
  59 }