stop.cpp
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/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
/*
* Main authors:
* Christian Schulte <schulte@gecode.org>
*
* Copyright:
* Christian Schulte, 2006
*
* 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 <gecode/search.hh>
namespace Gecode { namespace Search {
/*
* Creation functions for stop objects
*
*/
Stop*
Stop::node(unsigned long int l) {
return new NodeStop(l);
}
Stop*
Stop::fail(unsigned long int l) {
return new FailStop(l);
}
Stop*
Stop::time(unsigned long int l) {
return new TimeStop(l);
}
/*
* Stopping for node limit
*
*/
bool
NodeStop::stop(const Statistics& s, const Options&) {
return s.node > l;
}
/*
* Stopping for failure limit
*
*/
bool
FailStop::stop(const Statistics& s, const Options&) {
return s.fail > l;
}
/*
* Stopping for time limit
*
*/
bool
TimeStop::stop(const Statistics&, const Options&) {
return t.stop() > l;
}
}}
// STATISTICS: search-other
Gecode::Search::FailStop
Stop-object based on number of failures
Definition search.hh:852
Gecode::Search::FailStop::l
unsigned long int l
Failure limit.
Definition search.hh:855
Gecode::Search::FailStop::stop
virtual bool stop(const Statistics &s, const Options &o)
Return true if failure limit is exceeded.
Definition stop.cpp:71
Gecode::Search::NodeStop
Stop-object based on number of nodes
Definition search.hh:829
Gecode::Search::NodeStop::l
unsigned long int l
Node limit.
Definition search.hh:832
Gecode::Search::NodeStop::stop
virtual bool stop(const Statistics &s, const Options &o)
Return true if node limit is exceeded.
Definition stop.cpp:61
Gecode::Search::Options
Search engine options
Definition search.hh:746
Gecode::Search::Statistics
Search engine statistics
Definition search.hh:147
Gecode::Search::Statistics::fail
unsigned long int fail
Number of failed nodes in search tree.
Definition search.hh:150
Gecode::Search::Statistics::node
unsigned long int node
Number of nodes expanded.
Definition search.hh:152
Gecode::Search::Stop
Base-class for Stop-object.
Definition search.hh:799
Gecode::Search::Stop::node
static Stop * node(unsigned long int l)
Stop if node limit l has been exceeded.
Definition stop.cpp:43
Gecode::Search::Stop::time
static Stop * time(unsigned long int l)
Stop if time limit l (in milliseconds) has been exceeded.
Definition stop.cpp:51
Gecode::Search::Stop::fail
static Stop * fail(unsigned long int l)
Stop if failure limit l has been exceeded.
Definition stop.cpp:47
Gecode::Search::TimeStop
Stop-object based on time
Definition search.hh:871
Gecode::Search::TimeStop::stop
virtual bool stop(const Statistics &s, const Options &o)
Return true if time limit is exceeded.
Definition stop.cpp:81
Gecode::Search::TimeStop::t
Support::Timer t
Time when execution should stop.
Definition search.hh:874
Gecode::Search::TimeStop::l
unsigned long int l
Current limit in milliseconds.
Definition search.hh:876
Gecode::Search
Search engines
Gecode
Gecode toplevel namespace
search.hh