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// Copyright 2008, 2009 Brady J. Garvin
// This file is part of Covering Arrays by Simulated Annealing (CASA).
// CASA is free software: you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// CASA 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 CASA. If not, see <http://www.gnu.org/licenses/>.
#ifndef COVERING_ARRAY_H
#define COVERING_ARRAY_H
#include <cassert>
#include <iostream>
#include <set>
#include <map>
#include "Lazy.H"
#include "Array.H"
#include "covering/bookkeeping/Coverage.H"
#include "sat/SAT.H"
class CoveringArray {
protected:
// The first index is the test configuration (row).
// The second index is the option (column).
Array<Array<unsigned> > array;
Lazy<std::map<std::pair<unsigned, unsigned>, unsigned> >
substitutions;
SATSolver* solver;
bool trackingCoverage;
bool trackingNoncoverage;
unsigned coverageCount;
unsigned multipleCoverageCount;
Coverage<unsigned> coverage;
Lazy<std::set<Array<unsigned>, ArrayComparator<unsigned> > >
noncoverage;
public:
CoveringArray
(unsigned rows, unsigned strength, Options options, SATSolver&solver);
CoveringArray(const CoveringArray©);
unsigned getRows() const {
return array.getSize();
}
unsigned getOptions() const {
return array.getSize() ? array[0].getSize() : 0;
}
void setBackingArrayEntry(unsigned row, unsigned option, unsigned value);
void setBackingArrayRow(unsigned row, Array<unsigned>value);
class Entry {
protected:
CoveringArray& owner;
unsigned row;
unsigned option;
public:
Entry(CoveringArray&owner, unsigned row, unsigned option) :
owner(owner),
row(row),
option(option) {}
protected:
void updateTracking(unsigned value);
public:
operator unsigned() const;
Entry&operator =(unsigned value);
};
// Warning: CoveringArray::Row assumes that constraints are always satisfied.
class Row {
protected:
CoveringArray& owner;
unsigned row;
public:
Row(CoveringArray&owner, unsigned row) :
owner(owner),
row(row) {}
protected:
void updateTracking(const Array<unsigned>values);
public:
operator Array<unsigned>() const;
Row&operator =(const Array<unsigned>values);
};
// Warning: CoveringArray::SubRow assumes that constraints are always
// satisfied.
class SubRow {
protected:
CoveringArray& owner;
unsigned row;
Array<unsigned> columns;
public:
SubRow(CoveringArray&owner, unsigned row, Array<unsigned>columns) :
owner(owner),
row(row),
columns(columns) {}
protected:
void updateTracking(const Array<unsigned>values);
public:
operator Array<unsigned>() const;
SubRow&operator =(const Array<unsigned>values);
};
Entry operator ()(unsigned row, unsigned option) {
return Entry(*this, row, option);
}
const Entry operator ()(unsigned row, unsigned option) const {
return Entry(*const_cast<CoveringArray*>(this), row, option);
}
Row operator ()(unsigned row) {
return Row(*this, row);
}
const Row operator ()(unsigned row) const {
return Row(*const_cast<CoveringArray*>(this), row);
}
SubRow operator ()(unsigned row, Array<unsigned>columns) {
return SubRow(*this, row, columns);
}
const SubRow operator ()(unsigned row, Array<unsigned>columns) const {
return SubRow(*const_cast<CoveringArray*>(this), row, columns);
}
unsigned getCoverageCount() const;
unsigned getMultipleCoverageCount() const;
Array<unsigned>countDistinctCoverage() const;
bool operator <(const CoveringArray&other) const;
bool operator >(const CoveringArray&other) const;
bool operator ==(const CoveringArray&other) const;
bool operator !=(const CoveringArray&other) const;
void finalizeSubstitutions();
void autoFinalizeSubstitutions();
bool isTrackingCoverage() const;
void setTrackingCoverage(bool trackingCoverage);
bool isTrackingNoncoverage() const;
void setTrackingNoncoverage(bool trackingNoncoverage);
const std::set<Array<unsigned>, ArrayComparator<unsigned> >&getNoncoverage()
const;
};
std::ostream&operator <<(std::ostream&out,const CoveringArray&array);
#endif
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