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/*
* This file is part of the program ltl2dstar (http://www.ltl2dstar.de/).
* Copyright (C) 2005-2007 Joachim Klein <j.klein@ltl2dstar.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef APELEMENT_H
#define APELEMENT_H
/** @file
* Provides class APElement.
*/
#include "common/SimpleBitSet.hpp"
#include "APSet.hpp"
#include <string>
/**
* Class representing one element of 2^AP.
* It is currently capable of handling APSets with up 32 Elements,
* representing one APElement by a SimpleBitSet (=unsigned int).
*/
class APElement : public SimpleBitSet {
public:
/** Constructor */
APElement(unsigned int value) : SimpleBitSet(value) {;}
/** Copy constructor */
APElement(SimpleBitSet& sbs) : SimpleBitSet(sbs) {;}
/**
* Convert to a string representation.
* @param ap_set The underlying APSet
* @param spaces Print spaces in front of positive AP?
*/
std::string toString(const APSet& ap_set, bool spaces=true) const {
if (ap_set.size()==0) {return std::string("true");}
std::string r("");
for (unsigned int i=0;i<ap_set.size();i++) {
if (i>=1) {
r.append("&");
}
if (!this->get(i)) {
r.append("!");
} else {
if (spaces) {
r.append(" ");
}
}
r.append(ap_set.getAP(i));
}
return r;
}
/**
* Generate a representation in LBTT format.
* @param ap_set The underlying APSet
*/
std::string toStringLBTT(const APSet& ap_set) const {
if (ap_set.size()==0) {
return std::string("t");
}
std::string r("");
for (unsigned int i=0;i+1<ap_set.size();i++) {
r+="& ";
}
for (unsigned int i=0;i<ap_set.size();i++) {
if (!this->get(i)) {
r+="! ";
}
r+=ap_set.getAP(i);
r+=" ";
}
return r;
}
/**
* Prefix increment, goes to next APElement.
* @return an APElement representing the next APElement
*/
APElement& operator++() {
set(get()+1);
return *this;
}
/**
* Check for equality.
* @param other the other APElement
* @return <b>true</b> if this and the other APElement are equal.
*/
bool operator==(const APElement& other) const{
return this->getBitSet()==other.getBitSet();
}
/**
* Get the internal representation.
*/
operator unsigned int() {
return getBitSet();
}
};
#endif