libstdc++-v3/testsuite/26_numerics/random/mersenne_twister_engine/operators/equal.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 //
   6 // Copyright (C) 2008-2017 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 // 26.4.3.2 Class template mersenne_twister_engine [rand.eng.mers]
  24 // 26.4.2.2 Concept RandomNumberEngine [rand.concept.eng]
  25
  26 #include <random>
  27 #include <testsuite_hooks.h>
  28
  29 void
  30 test01()
  31 {
  32   std::mersenne_twister_engine<
  33     unsigned long, 32, 624, 397, 31,
  34     0x9908b0dful, 11,
  35     0xfffffffful, 7,
  36     0x9d2c5680ul, 15,
  37     0xefc60000ul, 18, 1812433253ul> u, v;
  38
  39   VERIFY( u == v );
  40
  41   u.discard(100);
  42   v.discard(100);
  43
  44   VERIFY( u == v );
  45 }
  46
  47 int main()
  48 {
  49   test01();
  50   return 0;
  51 }