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lemon/lp_skeleton.cc
author Alpar Juttner <alpar@cs.elte.hu>
Fri, 20 Feb 2009 21:37:19 +0000
changeset 564 2b6d5d22bb23
parent 481 7afc121e0689
child 587 9db62975c32b
permissions -rw-r--r--
Merge 
     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   LpSkeleton::SolveExitStatus LpSkeleton::_solve() { return SOLVED; }

    88 

    89   LpSkeleton::Value LpSkeleton::_getPrimal(int) const { return 0; }

    90   LpSkeleton::Value LpSkeleton::_getDual(int) const { return 0; }

    91   LpSkeleton::Value LpSkeleton::_getPrimalValue() const { return 0; }

    92 

    93   LpSkeleton::Value LpSkeleton::_getPrimalRay(int) const { return 0; }

    94   LpSkeleton::Value LpSkeleton::_getDualRay(int) const { return 0; }

    95 

    96   LpSkeleton::ProblemType LpSkeleton::_getPrimalType() const

    97   { return UNDEFINED; }

    98 

    99   LpSkeleton::ProblemType LpSkeleton::_getDualType() const

   100   { return UNDEFINED; }

   101 

   102   LpSkeleton::VarStatus LpSkeleton::_getColStatus(int) const

   103   { return BASIC; }

   104 

   105   LpSkeleton::VarStatus LpSkeleton::_getRowStatus(int) const

   106   { return BASIC; }

   107 

   108   LpSkeleton* LpSkeleton::_newSolver() const

   109   { return static_cast<LpSkeleton*>(0); }

   110 

   111   LpSkeleton* LpSkeleton::_cloneSolver() const

   112   { return static_cast<LpSkeleton*>(0); }

   113 

   114   const char* LpSkeleton::_solverName() const { return "LpSkeleton"; }

   115 

   116   MipSkeleton::SolveExitStatus MipSkeleton::_solve()

   117   { return SOLVED; }

   118 

   119   MipSkeleton::Value MipSkeleton::_getSol(int) const { return 0; }

   120   MipSkeleton::Value MipSkeleton::_getSolValue() const { return 0; }

   121 

   122   MipSkeleton::ProblemType MipSkeleton::_getType() const

   123   { return UNDEFINED; }

   124 

   125   MipSkeleton* MipSkeleton::_newSolver() const

   126   { return static_cast<MipSkeleton*>(0); }

   127 

   128   MipSkeleton* MipSkeleton::_cloneSolver() const

   129   { return static_cast<MipSkeleton*>(0); }

   130 

   131   const char* MipSkeleton::_solverName() const { return "MipSkeleton"; }

   132 

   133 } //namespace lemon

   134
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