// 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 COVERAGE_COST_H
#define COVERAGE_COST_H

#include <cassert>

class CoverageCost {
protected:
  unsigned				noncoverage;
  unsigned				multipleCoverage;

public:
  // So we can initialize an object from a literal zero:
  CoverageCost(unsigned zero = 0) :
    noncoverage(0),
    multipleCoverage(0) {
    assert(!zero);
  }
  CoverageCost(unsigned noncoverage, unsigned multipleCoverage) :
    noncoverage(noncoverage),
    multipleCoverage(multipleCoverage) {}

  unsigned getNoncoverage() const {
    return noncoverage;
  }
  unsigned getMultipleCoverage() const {
    return multipleCoverage;
  }

  bool operator <(const CoverageCost&other) const {
    if (noncoverage < other.noncoverage) {
      return true;
    }
    if (noncoverage > other.noncoverage) {
      return false;
    }
    return multipleCoverage < other.multipleCoverage;
  }
  bool operator <=(const CoverageCost&other) const {
    if (noncoverage < other.noncoverage) {
      return true;
    }
    if (noncoverage > other.noncoverage) {
      return false;
    }
    return multipleCoverage <= other.multipleCoverage;
  }
  bool operator ==(const CoverageCost&other) const {
    return
      noncoverage == other.noncoverage &&
      multipleCoverage == other.multipleCoverage;
  }
};

#endif