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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- *//* * Main authors: * Christian Schulte <schulte@gecode.org> * Guido Tack <tack@gecode.org> * * Copyright: * Christian Schulte, 2009 * Guido Tack, 2010 * * 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. * */
namespace Gecode { namespace Int { namespace Cumulative {
template<class ManTask, class Cap, class PL> forceinline ManProp<ManTask,Cap,PL>::ManProp(Home home, Cap c0, TaskArray<ManTask>& t) : TaskProp<ManTask,PL>(home,t), c(c0) { c.subscribe(home,*this,PC_INT_BND); }
template<class ManTask, class Cap, class PL> forceinline ManProp<ManTask,Cap,PL>::ManProp(Space& home, ManProp<ManTask,Cap,PL>& p) : TaskProp<ManTask,PL>(home,p) { c.update(home,p.c); }
template<class ManTask, class Cap, class PL> ExecStatus ManProp<ManTask,Cap,PL>::post(Home home, Cap c, TaskArray<ManTask>& t) { // Capacity must be nonnegative GECODE_ME_CHECK(c.gq(home, 0)); // Check that tasks do not overload resource for (int i=0; i<t.size(); i++) if (t[i].c() > c.max()) return ES_FAILED; if (t.size() == 1) GECODE_ME_CHECK(c.gq(home, t[0].c())); if (t.size() > 1) { if (c.assigned() && c.val()==1) { TaskArray<typename TaskTraits<ManTask>::UnaryTask> mt(home,t.size()); for (int i=0; i<t.size(); i++) mt[i]=t[i]; return Unary::ManProp<typename TaskTraits<ManTask>::UnaryTask,PL> ::post(home,mt); } else { (void) new (home) ManProp<ManTask,Cap,PL>(home,c,t); } } return ES_OK; }
template<class ManTask, class Cap, class PL> Actor* ManProp<ManTask,Cap,PL>::copy(Space& home) { return new (home) ManProp<ManTask,Cap,PL>(home,*this); }
template<class ManTask, class Cap, class PL> forceinline size_t ManProp<ManTask,Cap,PL>::dispose(Space& home) { (void) TaskProp<ManTask,PL>::dispose(home); c.cancel(home,*this,PC_INT_BND); return sizeof(*this); }
template<class ManTask, class Cap, class PL> ExecStatus ManProp<ManTask,Cap,PL>::propagate(Space& home, const ModEventDelta& med) { // Only bounds changes? if (IntView::me(med) != ME_INT_DOM) GECODE_ES_CHECK(overload(home,c.max(),t));
if (PL::advanced) GECODE_ES_CHECK(edgefinding(home,c.max(),t));
if (PL::basic) GECODE_ES_CHECK(timetabling(home,*this,c,t));
if (Cap::varderived() && c.assigned() && (c.val() == 1)) { // Check that tasks do not overload resource for (int i=0; i<t.size(); i++) if (t[i].c() > 1) return ES_FAILED; // Rewrite to unary resource constraint TaskArray<typename TaskTraits<ManTask>::UnaryTask> ut(home,t.size()); for (int i=0; i<t.size(); i++) ut[i]=t[i]; GECODE_REWRITE(*this, (Unary::ManProp<typename TaskTraits<ManTask>::UnaryTask,PL> ::post(home(*this),ut))); }
if (!PL::basic && c.assigned()) GECODE_ES_CHECK(subsumed(home,*this,c.val(),t));
return ES_NOFIX; }
}}}
// STATISTICS: int-prop