/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */ /* * Main authors: * Christian Schulte * Mikael Lagerkvist * * Copyright: * Christian Schulte, 2008 * Mikael Lagerkvist, 2008 * * This file is part of Gecode, the generic constraint * development environment: * http://www.gecode.org * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. * */ #include namespace Gecode { Support::Mutex Rnd::IMP::m; forceinline Rnd::IMP::IMP(unsigned int s) : rg(s) {} Rnd::IMP::~IMP(void) {} forceinline void Rnd::_seed(unsigned int s) { if (object() == nullptr) { object(new IMP(s)); } else { static_cast(object())->seed(s); } } Rnd::Rnd(void) {} Rnd::Rnd(unsigned int s) { object(new IMP(s)); } Rnd::Rnd(const Rnd& r) : SharedHandle(r) {} Rnd& Rnd::operator =(const Rnd& r) { (void) SharedHandle::operator =(r); return *this; } Rnd::~Rnd(void) {} void Rnd::seed(unsigned int s) { _seed(s); } void Rnd::time(void) { _seed(static_cast(::time(nullptr))); } void Rnd::hw(void) { _seed(Support::hwrnd()); } } // STATISTICS: kernel-other