| // { dg-options "-std=gnu++11" } |
| // { dg-require-cstdint "" } |
| // |
| // Copyright (C) 2012-2013 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/>. |
| |
| #include <random> |
| #include <testsuite_hooks.h> |
| |
| int f(int x) |
| { |
| std::seed_seq sq(&x, &x + 1); |
| auto rnd = std::ranlux24(sq); |
| return std::uniform_int_distribution<int>()(rnd); |
| } |
| |
| int g(int x) |
| { |
| std::seed_seq sq(&x, &x + 1); |
| auto rnd = std::ranlux24(); |
| rnd.seed(sq); |
| return std::uniform_int_distribution<int>()(rnd); |
| } |
| |
| void test01() |
| { |
| bool test __attribute__((unused)) = true; |
| |
| const int f1 = f(0); |
| const int f2 = f(0); |
| |
| const int g1 = g(0); |
| const int g2 = g(0); |
| |
| VERIFY( f1 == f2 ); |
| VERIFY( g1 == g2 ); |
| VERIFY( f1 == g1 ); |
| } |
| |
| int main() |
| { |
| test01(); |
| return 0; |
| } |