action.cpp
Go to the documentation of this file.00001 /* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */ 00002 /* 00003 * Main authors: 00004 * Christian Schulte <schulte@gecode.org> 00005 * 00006 * Copyright: 00007 * Christian Schulte, 2012 00008 * 00009 * This file is part of Gecode, the generic constraint 00010 * development environment: 00011 * http://www.gecode.org 00012 * 00013 * Permission is hereby granted, free of charge, to any person obtaining 00014 * a copy of this software and associated documentation files (the 00015 * "Software"), to deal in the Software without restriction, including 00016 * without limitation the rights to use, copy, modify, merge, publish, 00017 * distribute, sublicense, and/or sell copies of the Software, and to 00018 * permit persons to whom the Software is furnished to do so, subject to 00019 * the following conditions: 00020 * 00021 * The above copyright notice and this permission notice shall be 00022 * included in all copies or substantial portions of the Software. 00023 * 00024 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 00025 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 00026 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 00027 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 00028 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 00029 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 00030 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 00031 * 00032 */ 00033 00034 #include <gecode/kernel.hh> 00035 00036 namespace Gecode { 00037 00038 Support::Mutex Action::Storage::m; 00039 00040 Action::Storage::~Storage(void) { 00041 heap.free<double>(a,n); 00042 } 00043 00044 const Action Action::def; 00045 00046 Action::Action(const Action& a) 00047 : SharedHandle(a) {} 00048 00049 Action& 00050 Action::operator =(const Action& a) { 00051 (void) SharedHandle::operator =(a); 00052 return *this; 00053 } 00054 00055 Action::~Action(void) {} 00056 00057 void 00058 Action::decay(Space&, double d) { 00059 if ((d < 0.0) || (d > 1.0)) 00060 throw IllegalDecay("Action"); 00061 acquire(); 00062 object().invd = 1.0 / d; 00063 release(); 00064 } 00065 00066 double 00067 Action::decay(const Space&) const { 00068 double d; 00069 const_cast<Action*>(this)->acquire(); 00070 d = 1.0 / object().invd; 00071 const_cast<Action*>(this)->release(); 00072 return d; 00073 } 00074 00075 } 00076 00077 // STATISTICS: kernel-branch