diff options
Diffstat (limited to 'libstdc++-v3/testsuite/26_numerics/random/discard_block_engine/cons/55215.cc')
-rw-r--r-- | libstdc++-v3/testsuite/26_numerics/random/discard_block_engine/cons/55215.cc | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/libstdc++-v3/testsuite/26_numerics/random/discard_block_engine/cons/55215.cc b/libstdc++-v3/testsuite/26_numerics/random/discard_block_engine/cons/55215.cc new file mode 100644 index 00000000000..c655b262062 --- /dev/null +++ b/libstdc++-v3/testsuite/26_numerics/random/discard_block_engine/cons/55215.cc @@ -0,0 +1,58 @@ +// { dg-options "-std=gnu++11" } +// { dg-require-cstdint "" } +// +// Copyright (C) 2012 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; +} |