Something went wrong. Try again.
This repository has no description
Something went wrong. Try again.
3.8 kB · 122 lines
C++
at develop
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- *//* * Main authors: * Christian Schulte <schulte@gecode.org> * * Copyright: * Christian Schulte, 2016 * * 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 {
/// Duplicate of an integer view class IntTraceView { protected: /// Ranges capturing the variable domain RangeList* dom; public: /// Default constructor (initializes with no view) IntTraceView(void); /// Duplicate view \a y IntTraceView(Space& home, IntView y); /// Give access to ranges RangeList* ranges(void) const; /// Update duplicated view from view \a y and modification delta \a d void prune(Space& home, IntView y, const Delta& d); /// Update during cloning void update(Space& home, IntTraceView x); /// Return slack measure static unsigned long long int slack(IntView x); };
forceinline IntTraceView::IntTraceView(void) {}
forceinline IntTraceView::IntTraceView(Space& home, IntView y) { ViewRanges<IntView> yr(y); RangeList::copy(home, dom, yr); }
forceinline RangeList* IntTraceView::ranges(void) const { return dom; }
forceinline void IntTraceView::prune(Space& home, IntView y, const Delta& d) { if (y.range() && (dom->next() == nullptr)) { dom->min(y.min()); dom->max(y.max()); } else if (!y.any(d) && (y.max(d)+1 == y.min())) { // The lower bound has been adjusted if (y.min() > dom->max()) { RangeList* p = dom; RangeList* l = p->next(); while ((l != nullptr) && (l->max() < y.min())) { p=l; l=l->next(); } dom->dispose(home,p); dom = l; } dom->min(y.min()); } else if (!y.any(d) && (y.max()+1 == y.min(d))) { // upper bound has been adjusted if ((y.max() <= dom->max()) && (dom->next() == nullptr)) { dom->max(y.max()); } else { RangeList* p = dom; RangeList* l = p->next(); while ((l != nullptr) && (l->min() <= y.max())) { p=l; l=l->next(); } p->max(y.max()); if (p->next() != nullptr) p->next()->dispose(home); p->next(nullptr); } } else { // Just copy the domain ViewRanges<IntView> yr(y); RangeList::overwrite(home,dom,yr); } }
forceinline void IntTraceView::update(Space& home, IntTraceView y) { Iter::Ranges::RangeList yr(y.dom); RangeList::copy(home,dom,yr); }
forceinline unsigned long long int IntTraceView::slack(IntView x) { return x.width()-1; }
}}
// STATISTICS: int-trace