libstdc++-v3/testsuite/26_numerics/random/mersenne_twister_engine/requirements/constants.cc

   1 // { dg-do link { target c++11 } }
   2 // { dg-require-cstdint "" }
   3 //
   4 // 2009-09-29  Paolo Carlini <paolo.carlini@oracle.com>
   5 //
   6 // Copyright (C) 2009-2024 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 #include <random>
  24
  25 void test01()
  26 {
  27   std::mt19937 mt;
  28
  29   const void* p = &mt.word_size;
  30   p = &mt.state_size;
  31   p = &mt.shift_size;
  32   p = &mt.mask_bits;
  33   p = &mt.xor_mask;
  34   p = &mt.tempering_u;
  35   p = &mt.tempering_d;
  36   p = &mt.tempering_s;
  37   p = &mt.tempering_b;
  38   p = &mt.tempering_t;
  39   p = &mt.tempering_c;
  40   p = &mt.tempering_l;
  41   p = &mt.initialization_multiplier;
  42   p = &mt.default_seed;
  43   p = p; // Suppress unused warning.
  44 }
  45
  46 int main()
  47 {
  48   test01();
  49   return 0;
  50 }