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// Copyright (C) 2019-2022 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING3. If not see
// <http://www.gnu.org/licenses/>.
// { dg-do run { target c++11 } }
#include <random>
#include <testsuite_hooks.h>
#include <testsuite_random.h>
void
test01()
{
if (__gnu_test::random_device_available("mt19937"))
{
// std::random_device uses a Mersenne Twister with default seed,
// and the test below will fail. No point trying to test it.
return;
}
unsigned v1[3], v2[3];
std::random_device d1, d2;
for (auto& v : v1)
v = d1();
for (auto& v : v2)
v = d2();
VERIFY (v1[0] != v2[0] || v1[1] != v2[1] || v1[2] != v2[2] );
}
int
main()
{
test01();
}