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# /home/coin/svn-release/Blis-0.93.2/Blis/src/BlisSolution.h

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    00001 /*===========================================================================*
    00002  * This file is part of the BiCePS Linear Integer Solver (BLIS).             *
    00003  *                                                                           *
    00004  * ALPS is distributed under the Eclipse Public License as part of the       *
    00005  * COIN-OR repository (http://www.coin-or.org).                              *
    00006  *                                                                           *
    00007  * Authors:                                                                  *
    00008  *                                                                           *
    00009  *          Yan Xu, Lehigh University                                        *
    00010  *          Ted Ralphs, Lehigh University                                    *
    00011  *                                                                           *
    00012  * Conceptual Design:                                                        *
    00013  *                                                                           *
    00014  *          Yan Xu, Lehigh University                                        *
    00015  *          Ted Ralphs, Lehigh University                                    *
    00016  *          Laszlo Ladanyi, IBM T.J. Watson Research Center                  *
    00017  *          Matthew Saltzman, Clemson University                             *
    00018  *                                                                           *
    00019  *                                                                           *
    00020  * Copyright (C) 2001-2011, Lehigh University, Yan Xu, and Ted Ralphs.       *
    00021  * All Rights Reserved.                                                      *
    00022  *===========================================================================*/
    00023
    00024 #ifndef BlisSolution_h_
    00025 #define BlisSolution_h_
    00026
    00027 #include "Alps.h"
    00028 #include "BcpsSolution.h"
    00029
    00030 //#############################################################################
    00034 //#############################################################################
    00035
    00036 class BlisSolution : public BcpsSolution {
    00037
    00038  protected:
    00039
    00040  public:
    00041
    00043     BlisSolution()
    00044         :
    00045         BcpsSolution()
    00046         {}
    00047
    00049     BlisSolution(int s, const double *values, double objValue)
    00050         :
    00051         BcpsSolution(s, values, objValue)
    00052         {}
    00053
    00055     virtual ~BlisSolution() { }
    00056
    00059     virtual void print(std::ostream& os) const {
    00060         double nearInt = 0.0;
    00061         for (int j = 0; j < size_; ++j) {
    00062             if (values_[j] > 1.0e-15 || values_[j] < -1.0e-15) {
    00063                 nearInt = floor(values_[j] + 0.5);
    00064                 if (ALPS_FABS(nearInt - values_[j]) < 1.0e-6) {
    00065                     os << "x[" << j << "] = " << nearInt << std::endl;
    00066                 }
    00067                 else {
    00068                     os << "x[" << j << "] = " << values_[j] << std::endl;
    00069                 }
    00070             }
    00071         }
    00072     }
    00073
    00076     // BlisIpSolution* testIntegrality(const double etol = 1e-5) const;
    00077
    00078     using AlpsKnowledge::encode ;
    00080     virtual AlpsEncoded* encode() const {
    00081         AlpsEncoded* encoded = new AlpsEncoded(AlpsKnowledgeTypeSolution);
    00082         encodeBcps(encoded);
    00083         // Nothing to do for Blis part.
    00084         return encoded;
    00085     }
    00086
    00088     virtual AlpsKnowledge* decode(AlpsEncoded& encoded) const {
    00089         BlisSolution * sol = new BlisSolution();
    00090         sol->decodeBcps(encoded);
    00091         return sol;
    00092     }
    00093
    00094 };
    00095
    00096 //#############################################################################
    00097 //#############################################################################
    00098
    00099 #endif