Jip J. Dekker
2572df0663
git-subtree-dir: software/gecode_base git-subtree-split: bbefcea214fec798a0f5acc442581984555acd21
85 lines
2.3 KiB
C++
85 lines
2.3 KiB
C++
/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
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/*
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* Main authors:
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* Christian Schulte <schulte@gecode.org>
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* Mikael Lagerkvist <lagerkvist@gecode.org>
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*
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* Copyright:
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* Christian Schulte, 2008
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* Mikael Lagerkvist, 2008
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*
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* This file is part of Gecode, the generic constraint
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* development environment:
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* http://www.gecode.org
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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#include <gecode/kernel.hh>
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namespace Gecode {
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Support::Mutex Rnd::IMP::m;
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forceinline
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Rnd::IMP::IMP(unsigned int s)
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: rg(s) {}
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Rnd::IMP::~IMP(void) {}
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forceinline void
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Rnd::_seed(unsigned int s) {
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if (object() == nullptr) {
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object(new IMP(s));
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} else {
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static_cast<IMP*>(object())->seed(s);
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}
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}
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Rnd::Rnd(void) {}
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Rnd::Rnd(unsigned int s) {
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object(new IMP(s));
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}
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Rnd::Rnd(const Rnd& r)
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: SharedHandle(r) {}
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Rnd&
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Rnd::operator =(const Rnd& r) {
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(void) SharedHandle::operator =(r);
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return *this;
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}
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Rnd::~Rnd(void) {}
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void
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Rnd::seed(unsigned int s) {
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_seed(s);
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}
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void
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Rnd::time(void) {
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_seed(static_cast<unsigned int>(::time(nullptr)));
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}
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void
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Rnd::hw(void) {
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_seed(Support::hwrnd());
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}
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}
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// STATISTICS: kernel-other
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