lemon-main: lemon/lp_skeleton.cc@e77b621e6e7e

     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  */

    19 #include <lemon/lp_skeleton.h>

    21 ///\file

    22 ///\brief A skeleton file to implement LP solver interfaces

    23 namespace lemon {

    25   int SkeletonSolverBase::_addCol()

    26   {

    27     return ++col_num;

    28   }

    30   int SkeletonSolverBase::_addRow()

    31   {

    32     return ++row_num;

    33   }

    35   int SkeletonSolverBase::_addRow(Value, ExprIterator, ExprIterator, Value)

    36   {

    37     return ++row_num;

    38   }

    40   void SkeletonSolverBase::_eraseCol(int) {}

    41   void SkeletonSolverBase::_eraseRow(int) {}

    43   void SkeletonSolverBase::_getColName(int, std::string &) const {}

    44   void SkeletonSolverBase::_setColName(int, const std::string &) {}

    45   int SkeletonSolverBase::_colByName(const std::string&) const { return -1; }

    47   void SkeletonSolverBase::_getRowName(int, std::string &) const {}

    48   void SkeletonSolverBase::_setRowName(int, const std::string &) {}

    49   int SkeletonSolverBase::_rowByName(const std::string&) const { return -1; }

    51   void SkeletonSolverBase::_setRowCoeffs(int, ExprIterator, ExprIterator) {}

    52   void SkeletonSolverBase::_getRowCoeffs(int, InsertIterator) const {}

    54   void SkeletonSolverBase::_setColCoeffs(int, ExprIterator, ExprIterator) {}

    55   void SkeletonSolverBase::_getColCoeffs(int, InsertIterator) const {}

    57   void SkeletonSolverBase::_setCoeff(int, int, Value) {}

    58   SkeletonSolverBase::Value SkeletonSolverBase::_getCoeff(int, int) const

    59   { return 0; }

    61   void SkeletonSolverBase::_setColLowerBound(int, Value) {}

    62   SkeletonSolverBase::Value SkeletonSolverBase::_getColLowerBound(int) const

    63   {  return 0; }

    65   void SkeletonSolverBase::_setColUpperBound(int, Value) {}

    66   SkeletonSolverBase::Value SkeletonSolverBase::_getColUpperBound(int) const

    67   {  return 0; }

    69   void SkeletonSolverBase::_setRowLowerBound(int, Value) {}

    70   SkeletonSolverBase::Value SkeletonSolverBase::_getRowLowerBound(int) const

    71   {  return 0; }

    73   void SkeletonSolverBase::_setRowUpperBound(int, Value) {}

    74   SkeletonSolverBase::Value SkeletonSolverBase::_getRowUpperBound(int) const

    75   {  return 0; }

    77   void SkeletonSolverBase::_setObjCoeffs(ExprIterator, ExprIterator) {}

    78   void SkeletonSolverBase::_getObjCoeffs(InsertIterator) const {};

    80   void SkeletonSolverBase::_setObjCoeff(int, Value) {}

    81   SkeletonSolverBase::Value SkeletonSolverBase::_getObjCoeff(int) const

    82   {  return 0; }

    84   void SkeletonSolverBase::_setSense(Sense) {}

    85   SkeletonSolverBase::Sense SkeletonSolverBase::_getSense() const

    86   { return MIN; }

    88   void SkeletonSolverBase::_clear() {

    89     row_num = col_num = 0;

    90   }

    92   void SkeletonSolverBase::_messageLevel(MessageLevel) {}

    94   LpSkeleton::SolveExitStatus LpSkeleton::_solve() { return SOLVED; }

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

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

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

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

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

   103   LpSkeleton::ProblemType LpSkeleton::_getPrimalType() const

   104   { return UNDEFINED; }

   106   LpSkeleton::ProblemType LpSkeleton::_getDualType() const

   107   { return UNDEFINED; }

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

   110   { return BASIC; }

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

   113   { return BASIC; }

   115   LpSkeleton* LpSkeleton::newSolver() const

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

   118   LpSkeleton* LpSkeleton::cloneSolver() const

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

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

   123   MipSkeleton::SolveExitStatus MipSkeleton::_solve()

   124   { return SOLVED; }

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

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

   129   MipSkeleton::ProblemType MipSkeleton::_getType() const

   130   { return UNDEFINED; }

   132   MipSkeleton* MipSkeleton::newSolver() const

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

   135   MipSkeleton* MipSkeleton::cloneSolver() const

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

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

   140 } //namespace lemon

author	Alpar Juttner <alpar@cs.elte.hu>
	Mon, 01 Mar 2010 07:51:45 +0100
changeset 850	e77b621e6e7e
parent 576	745e182d0139
child 877	141f9c0db4a3
permissions	-rw-r--r--