Mercurial > hg > CbC > CbC_gcc
view libstdc++-v3/testsuite/experimental/algorithm/shuffle.cc @ 158:494b0b89df80 default tip
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author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
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date | Mon, 25 May 2020 18:13:55 +0900 |
parents | 1830386684a0 |
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// { dg-do run { target c++14 } } // { dg-require-cstdint "" } // { dg-require-effective-target random_device } // { dg-require-effective-target tls_runtime } // { dg-add-options tls } // Derived from: 2010-03-19 Paolo Carlini <paolo.carlini@oracle.com> // Copyright (C) 2010-2020 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 <experimental/algorithm> #include <vector> #include <testsuite_hooks.h> void test01() { for (unsigned size = 0; size < 50; ++size) { std::vector<int> vref(size); std::iota(vref.begin(), vref.end(), 0); std::vector<int> v1(vref), v2(vref); std::experimental::shuffle(v1.begin(), v1.end()); std::experimental::shuffle(v2.begin(), v2.end()); if (size >= 10) { VERIFY( !std::equal(v1.begin(), v1.end(), vref.begin()) ); VERIFY( !std::equal(v2.begin(), v2.end(), vref.begin()) ); VERIFY( !std::equal(v1.begin(), v1.end(), v2.begin()) ); } for (unsigned ind = 0; ind < size; ++ind) { auto it1 = std::find(v1.begin(), v1.end(), vref[ind]); auto it2 = std::find(v2.begin(), v2.end(), vref[ind]); VERIFY( it1 != v1.end() ); VERIFY( it2 != v2.end() ); v1.erase(it1); v2.erase(it2); } VERIFY( v1.empty() ); VERIFY( v2.empty() ); } } int main() { test01(); }