libstdc++-v3/testsuite/ext/random/normal_mv_distribution/cons/default.cc

   1 // { dg-do run { target c++11 } }
   2 // { dg-require-cstdint "" }
   3 //
   4 // 2008-11-24  Edward M. Smith-Rowland <3dw4rd@verizon.net>
   5 // 2012-09-04  Ulrich Drepper <drepper@gmail.com>
   6 //
   7 // Copyright (C) 2012-2023 Free Software Foundation, Inc.
   8 //
   9 // This file is part of the GNU ISO C++ Library.  This library is free
  10 // software; you can redistribute it and/or modify it under the
  11 // terms of the GNU General Public License as published by the
  12 // Free Software Foundation; either version 3, or (at your option)
  13 // any later version.
  14 //
  15 // This library is distributed in the hope that it will be useful,
  16 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 // GNU General Public License for more details.
  19 //
  20 // You should have received a copy of the GNU General Public License along
  21 // with this library; see the file COPYING3.  If not see
  22 // <http://www.gnu.org/licenses/>.
  23
  24 #include <ext/random>
  25 #include <testsuite_hooks.h>
  26 #include <testsuite_common_types.h>
  27
  28 void
  29 test01()
  30 {
  31   __gnu_cxx::normal_mv_distribution<2> u;
  32   VERIFY( u.mean()[0] == 0.0 );
  33   VERIFY( u.mean()[1] == 0.0 );
  34   VERIFY( u.varcov()[0] == 1.0 );
  35   VERIFY( u.varcov()[1] == 0.0 );
  36   VERIFY( u.varcov()[2] == 1.0 );
  37   typedef __gnu_cxx::normal_mv_distribution<2>::result_type result_type;
  38   VERIFY( u.min()[0] == std::numeric_limits<result_type::value_type>::lowest() );
  39   VERIFY( u.max()[0] == std::numeric_limits<result_type::value_type>::max() );
  40   VERIFY( u.min()[1] == std::numeric_limits<result_type::value_type>::lowest() );
  41   VERIFY( u.max()[1] == std::numeric_limits<result_type::value_type>::max() );
  42 }
  43
  44 void
  45 test02()
  46 {
  47   __gnu_test::implicitly_default_constructible test;
  48   test.operator()<__gnu_cxx::normal_mv_distribution<2>>();
  49   test.operator()<__gnu_cxx::normal_mv_distribution<2>::param_type>();
  50 }
  51
  52 int main()
  53 {
  54   test01();
  55   test02();
  56 }