lemon/lp_skeleton.cc
author Balazs Dezso <deba@inf.elte.hu>
Thu, 04 Mar 2010 15:20:59 +0100
changeset 951 41d7ac528c3a
parent 587 9db62975c32b
child 793 e4554cd6b2bf
child 1081 f1398882a928
permissions -rw-r--r--
Uniforming primal scale to 2 (#314)
     1 /* -*- mode: C++; indent-tabs-mode: nil; -*-
     2  *
     3  * This file is a part of LEMON, a generic C++ optimization library.
     4  *
     5  * Copyright (C) 2003-2008
     6  * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
     7  * (Egervary Research Group on Combinatorial Optimization, EGRES).
     8  *
     9  * Permission to use, modify and distribute this software is granted
    10  * provided that this copyright notice appears in all copies. For
    11  * precise terms see the accompanying LICENSE file.
    12  *
    13  * This software is provided "AS IS" with no warranty of any kind,
    14  * express or implied, and with no claim as to its suitability for any
    15  * purpose.
    16  *
    17  */
    18 
    19 #include <lemon/lp_skeleton.h>
    20 
    21 ///\file
    22 ///\brief A skeleton file to implement LP solver interfaces
    23 namespace lemon {
    24 
    25   int SkeletonSolverBase::_addCol()
    26   {
    27     return ++col_num;
    28   }
    29 
    30   int SkeletonSolverBase::_addRow()
    31   {
    32     return ++row_num;
    33   }
    34 
    35   void SkeletonSolverBase::_eraseCol(int) {}
    36   void SkeletonSolverBase::_eraseRow(int) {}
    37 
    38   void SkeletonSolverBase::_getColName(int, std::string &) const {}
    39   void SkeletonSolverBase::_setColName(int, const std::string &) {}
    40   int SkeletonSolverBase::_colByName(const std::string&) const { return -1; }
    41 
    42   void SkeletonSolverBase::_getRowName(int, std::string &) const {}
    43   void SkeletonSolverBase::_setRowName(int, const std::string &) {}
    44   int SkeletonSolverBase::_rowByName(const std::string&) const { return -1; }
    45 
    46   void SkeletonSolverBase::_setRowCoeffs(int, ExprIterator, ExprIterator) {}
    47   void SkeletonSolverBase::_getRowCoeffs(int, InsertIterator) const {}
    48 
    49   void SkeletonSolverBase::_setColCoeffs(int, ExprIterator, ExprIterator) {}
    50   void SkeletonSolverBase::_getColCoeffs(int, InsertIterator) const {}
    51 
    52   void SkeletonSolverBase::_setCoeff(int, int, Value) {}
    53   SkeletonSolverBase::Value SkeletonSolverBase::_getCoeff(int, int) const
    54   { return 0; }
    55 
    56   void SkeletonSolverBase::_setColLowerBound(int, Value) {}
    57   SkeletonSolverBase::Value SkeletonSolverBase::_getColLowerBound(int) const
    58   {  return 0; }
    59 
    60   void SkeletonSolverBase::_setColUpperBound(int, Value) {}
    61   SkeletonSolverBase::Value SkeletonSolverBase::_getColUpperBound(int) const
    62   {  return 0; }
    63 
    64   void SkeletonSolverBase::_setRowLowerBound(int, Value) {}
    65   SkeletonSolverBase::Value SkeletonSolverBase::_getRowLowerBound(int) const
    66   {  return 0; }
    67 
    68   void SkeletonSolverBase::_setRowUpperBound(int, Value) {}
    69   SkeletonSolverBase::Value SkeletonSolverBase::_getRowUpperBound(int) const
    70   {  return 0; }
    71 
    72   void SkeletonSolverBase::_setObjCoeffs(ExprIterator, ExprIterator) {}
    73   void SkeletonSolverBase::_getObjCoeffs(InsertIterator) const {};
    74 
    75   void SkeletonSolverBase::_setObjCoeff(int, Value) {}
    76   SkeletonSolverBase::Value SkeletonSolverBase::_getObjCoeff(int) const
    77   {  return 0; }
    78 
    79   void SkeletonSolverBase::_setSense(Sense) {}
    80   SkeletonSolverBase::Sense SkeletonSolverBase::_getSense() const
    81   { return MIN; }
    82 
    83   void SkeletonSolverBase::_clear() {
    84     row_num = col_num = 0;
    85   }
    86 
    87   void SkeletonSolverBase::_messageLevel(MessageLevel) {}
    88 
    89   LpSkeleton::SolveExitStatus LpSkeleton::_solve() { return SOLVED; }
    90 
    91   LpSkeleton::Value LpSkeleton::_getPrimal(int) const { return 0; }
    92   LpSkeleton::Value LpSkeleton::_getDual(int) const { return 0; }
    93   LpSkeleton::Value LpSkeleton::_getPrimalValue() const { return 0; }
    94 
    95   LpSkeleton::Value LpSkeleton::_getPrimalRay(int) const { return 0; }
    96   LpSkeleton::Value LpSkeleton::_getDualRay(int) const { return 0; }
    97 
    98   LpSkeleton::ProblemType LpSkeleton::_getPrimalType() const
    99   { return UNDEFINED; }
   100 
   101   LpSkeleton::ProblemType LpSkeleton::_getDualType() const
   102   { return UNDEFINED; }
   103 
   104   LpSkeleton::VarStatus LpSkeleton::_getColStatus(int) const
   105   { return BASIC; }
   106 
   107   LpSkeleton::VarStatus LpSkeleton::_getRowStatus(int) const
   108   { return BASIC; }
   109 
   110   LpSkeleton* LpSkeleton::newSolver() const
   111   { return static_cast<LpSkeleton*>(0); }
   112 
   113   LpSkeleton* LpSkeleton::cloneSolver() const
   114   { return static_cast<LpSkeleton*>(0); }
   115 
   116   const char* LpSkeleton::_solverName() const { return "LpSkeleton"; }
   117 
   118   MipSkeleton::SolveExitStatus MipSkeleton::_solve()
   119   { return SOLVED; }
   120 
   121   MipSkeleton::Value MipSkeleton::_getSol(int) const { return 0; }
   122   MipSkeleton::Value MipSkeleton::_getSolValue() const { return 0; }
   123 
   124   MipSkeleton::ProblemType MipSkeleton::_getType() const
   125   { return UNDEFINED; }
   126 
   127   MipSkeleton* MipSkeleton::newSolver() const
   128   { return static_cast<MipSkeleton*>(0); }
   129 
   130   MipSkeleton* MipSkeleton::cloneSolver() const
   131   { return static_cast<MipSkeleton*>(0); }
   132 
   133   const char* MipSkeleton::_solverName() const { return "MipSkeleton"; }
   134 
   135 } //namespace lemon
   136